You control at least four creatures that each have at least one +1/+1 counter on them.

Cast Ancestral Statue by paying .
When Ancestral Statue enters the battlefield, it triggers, returning itself from the battlefield to your hand.
Repeat.

You have a creature card in hand that has Morph or Megamorph.
You control at least three creatures with +1/+1 counters on them.

Cast the creature using its morph or megamorph cost by paying , putting it face-down on the battlefield as a 3/3 creature.
Activate Primordial Mist by exiling the face down creature face up, allowing you to cast it this turn.
Repeat.

You control at least three creatures with +1/+1 counters on them.

Cast Bill the Pony by paying .
When Bill the Pony enters the battlefield, it and Samwise trigger.
Resolve the Samwise trigger, creating a Food artifact token.
Resolve the Bill the Pony trigger, creating two Food artifact tokens.
Activate Phyrexian Altar by sacrificing Bill the Pony, adding .
Activate Samwise by sacrificing three Foods, returning Bill the Pony to your hand from your graveyard.
Repeat.

You have a creature card in hand with power 4 or greater that can be cast for due to Hamza.
You control at least one nonartifact creature token.

Cast the creature by paying due to Hamza.
When the creature enters the battlefield, Life Finds A Way triggers, as well as Cloudstone Curio if the creature isn't an artifact.
Resolve the Cloudstone Curio trigger, if applicable, choosing to return nothing to your hand.
Resolve the Life Finds A Way trigger, creating a copy of a nonartifact creature token you control.
When the creature token enters the battlefield, Cloudstone Curio triggers, returning the creature cast in step 1 to your hand from the battlefield.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Quirion Sentinel for , triggering Retreat to Emeria and Cloudstone Curio.
Quirion Sentinel triggers, adding .
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Retreat to Emeria's trigger, creating a 1/1 Kor Ally creature token.
The Kor Ally token triggers Cloudstone Curio.
Resolve Cloudstone Curio's trigger returning Quirion Sentinel to your hand.
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Cast Mox Amber by paying .
Activate Mox Amber by tapping it, adding .
Cast Kor Skyfisher by paying .
When Kor Skyfisher enters the battlefield, it triggers twice due to Delney, returning Mox Amber and Kor Skyfisher from the battlefield to your hand.
Repeat.

You control at least one additional non-Human creature.
You control at least two creatures with +1/+1 counters on them, excluding the additional non-Human creature.

Cast Cubwarden for its mutate cost by paying , targeting a non-Human creature you control.
The Cubwarden mutated creature triggers, creating two 1/1 Cat creature tokens.
Activate Phyrexian Altar by sacrificing the Cubwarden mutated creature, adding .
When the Cubwarden mutated creature dies, Enduring Renewal triggers, returning Cubwarden and any cards merged with it from your graveyard to your hand.
Activate Phyrexian Altar by sacrificing a Cat token, adding .
Repeat.

You control at least two creatures with +1/+1 counters on them.

Cast Battalion Foot Soldier by paying .
When Battalion Foot Soldier enters the battlefield, it triggers.
Holding priority, activate Phyrexian Altar by sacrificing Battalion Foot Soldier, adding .
Battalion Foot Soldier is put on the bottom of your library instead of in your graveyard due to Wheel of Sun and Moon.
Resolve the Batallion Foot Soldier trigger from step 2, causing you to search your library for Batallion Foot Soldier and put it into your hand.
Repeat.

You control at least six creatures with +1/+1 counters on them.

Cast Somberwald Beastmaster by paying .
Somberwald Beastmaster enters the battlefield, creating a 2/2 Wolf, 3/3 Beast and 4/4 Beast creature token.
Activate Phyrexian Altar three times by sacrificing the Wolf and two Beasts, adding .
Activate Temur Sabertooth by paying , returning Somberwald Beastmaster from the battlefield to your hand.
Repeat.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Thaumatog's second ability by sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the ability from step 3.
Repeat from step 2.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Faith Healer by sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the ability from step 3.
Repeat from step 2.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Auratog by sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the ability from step 3.
Repeat from step 2.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Auramancer from your graveyard for its retrace cost by paying and discarding Urza's Saga.
When Auramancer enters the battlefield, it triggers, returning Urza's Saga from your graveyard to your hand.
Activate Phyrexian Altar by sacrificing Auramancer, adding .
Repeat.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
When Faceless One enters the battlefield, Blasting Station triggers, untapping Blasting Station.
Activate Blasting Station by tapping it and sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the Blasting Station ability, dealing 1 damage to any target.
Repeat from step 2.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Altar of Dementia by sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the ability from step 3, milling target player three cards.
Repeat from step 2.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Ashnod's Altar by sacrificing Faceless One, adding .
Choose to return Faceless One to the command zone from your graveyard.
Repeat from step 2.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Phyrexian Altar by sacrificing Faceless One, adding one mana of any color.
Choose to return Faceless One to the command zone from your graveyard.
Repeat from step 2.

At least one +1/+1 counter among creatures you control.

Cast Quirion Sentinel for , triggering Sporemound and Cloudstone Curio.
Quirion Sentinel triggers, adding .
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Sporemound's trigger, creating a 1/1 Saproling creature token.
The Saproling token triggers Cloudstone Curio.
Resolve Cloudstone Curio's trigger returning Quirion Sentinel to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Quirion Sentinel for , triggering Rampaging Baloths and Cloudstone Curio.
Quirion Sentinel triggers, adding .
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Rampaging Baloths's trigger, creating a 4/4 Beast creature token.
The Beast token triggers Cloudstone Curio.
Resolve Cloudstone Curio's trigger returning Quirion Sentinel to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Quirion Sentinel for , triggering Emeria Angel and Cloudstone Curio.
Quirion Sentinel triggers, adding .
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Emeria Angel's trigger, creating a 1/1 Bird creature token with flying.
The Bird token triggers Cloudstone Curio.
Resolve Cloudstone Curio's trigger returning Quirion Sentinel to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Quirion Sentinel for , triggering Felidar Retreat and Cloudstone Curio.
Quirion Sentinel triggers, adding .
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Felidar Retreat's trigger, creating a 2/2 Cat Beast creature token.
The Cat Beast token triggers Cloudstone Curio.
Resolve Cloudstone Curio's trigger returning Quirion Sentinel to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Beastcaller Savant for , triggering Sporemound and Cloudstone Curio.
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Sporemound's trigger, creating a 1/1 Saproling creature token.
The Saproling token triggers Cloudstone Curio.
Tap Beastcaller Savant, adding .
Resolve Cloudstone Curio's trigger returning Beastcaller Savant to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Beastcaller Savant for , triggering Retreat to Emeria and Cloudstone Curio.
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Retreat to Emeria's trigger, creating a 1/1 Kor Ally creature token.
The Kor Ally token triggers Cloudstone Curio.
Tap Beastcaller Savant, adding .
Resolve Cloudstone Curio's trigger returning Beastcaller Savant to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Beastcaller Savant for , triggering Rampaging Baloths and Cloudstone Curio.
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Rampaging Baloths's trigger, creating a 4/4 Beast creature token.
The Beast token triggers Cloudstone Curio.
Tap Beastcaller Savant, adding .
Resolve Cloudstone Curio's trigger returning Beastcaller Savant to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Beastcaller Savant for , triggering Emeria Angel and Cloudstone Curio.
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Emeria Angel's trigger, creating a 1/1 Bird creature token with flying.
The Bird token triggers Cloudstone Curio.
Tap Beastcaller Savant, adding .
Resolve Cloudstone Curio's trigger returning Beastcaller Savant to your hand.
Repeat.

At least one +1/+1 counter among creatures you control.

Cast Beastcaller Savant for , triggering Felidar Retreat and Cloudstone Curio.
Resolve Cloudstone Curio's trigger choosing not to return another permanent.
Resolve Felidar Retreat's trigger, creating a 2/2 Cat Beast creature token.
The Cat Beast token triggers Cloudstone Curio.
Tap Beastcaller Savant, adding .
Resolve Cloudstone Curio's trigger returning Beastcaller Savant to your hand.
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Phyrexian Altar by sacrificing Oathsworn Vampire, adding .
Cast Oathsworn Vampire from your graveyard by paying .
Repeat.

You control a creature with a +1/+1 counter on it.

Cast Myr Retriever by paying .
When Myr Retriever enters the battlefield, The Sibsig Ceremony triggers, destroying Myr Retriever and creating a 2/2 Zombie Druid creature token.
When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
Cast Scrap Trawler by paying .
When Scrap Trawler enters the battlefield, The Sibsig Ceremony triggers, destroying Scrap Trawler and creating a 2/2 Zombie Druid creature token.
When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Repeat.

You control a creature with a +1/+1 counter on it.

Cast Workshop Assistant by paying .
When Workshop Assistant enters the battlefield, The Sibsig Ceremony triggers, destroying Workshop Assistant and creating a 2/2 Zombie Druid creature token.
When Workshop Assistant dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying .
When Myr Retriever enters the battlefield, The Sibsig Ceremony triggers, destroying Myr Retriever and creating a 2/2 Zombie Druid creature token.
When Myr Retriever dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
Repeat.

You control a creature with a +1/+1 counter on it.

Cast Junk Diver by paying .
When Junk Diver enters the battlefield, The Sibsig Ceremony triggers, destroying Junk Diver and creating a 2/2 Zombie Druid creature token.
When Junk Diver dies, it triggers, returning Myr Retriever from your graveyard to your hand.
Cast Myr Retriever by paying .
When Myr Retriever enters the battlefield, The Sibsig Ceremony triggers, destroying Myr Retriever and creating a 2/2 Zombie Druid creature token.
When Myr Retriever dies, it triggers, returning Junk Diver from your graveyard to your hand.
Repeat.

You control a creature with a +1/+1 counter on it.

Cast Junk Diver by paying .
When Junk Diver enters the battlefield, The Sibsig Ceremony triggers, destroying Junk Diver and creating a 2/2 Zombie Druid creature token.
When Junk Diver dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
Cast Workshop Assistant by paying .
When Workshop Assistant enters the battlefield, The Sibsig Ceremony triggers, destroying Workshop Assistant and creating a 2/2 Zombie Druid creature token.
When Workshop Assistant dies, it triggers, returning Junk Diver from your graveyard to your hand.
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Cast Squee from your graveyard or from exile by paying .
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Thermopod's second ability twice by sacrificing Squee and the Alien Warrior, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Cast Squee from your graveyard or from exile by paying .
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Phyrexian Altar twice by sacrificing Squee and the Alien Warrior, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Cast Mox Amber by paying .
Activate Mox Amber by tapping it, adding .
Cast Dream Stalker by paying .
When Dream Stalker enters the battlefield, it triggers twice due to Delney, returning Mox Amber and Dream Stalker from the battlefield to your hand.
Repeat.

You control at least two creatures with +1/+1 counters on them.

Cast Battalion Foot Soldier by paying .
When Battalion Foot Soldier enters the battlefield, it triggers.
Holding priority, activate Phyrexian Altar by sacrificing Battalion Foot Soldier, adding .
When Battalion Foot Soldier dies, Mortuary triggers, putting Battalion Foot Soldier from your graveyard on top of your library.
Resolve the Batallion Foot Soldier trigger from step 2, causing you to search your library for Batallion Foot Soldier and put it into your hand.
Repeat.

You control at least five creatures with a +1/+1 counter on them.

Activate Mirage Mirror by paying , causing it to become a copy of Myth Unbound until end of turn.
Cast Faceless One from the command zone by paying .
Activate Phantatog's first ability by sacrificing Faceless One.
Choose to return Faceless One to the command zone from your graveyard.
Resolve the ability from step 3.
Repeat from step 2.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Phyrexian Altar twice by sacrificing the Zombie Rogue and Ebondeath, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Yahenni twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Yahenni abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Woe Strider twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Woe Strider abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Shilgengar twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Shilgengar abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Viscera Seer twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Viscera Seer abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Carrion Feeder twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Carrion Feeder abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Bloodflow Connoisseur twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Bloodflow Connoisseur abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Bartolomé del Presidio twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Bartolomé del Presidio abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Altar of Dementia twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Altar of Dementia abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.

Activate Shilgengar by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Shilgengar ability from step 1.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

Activate Bartolomé del Presidio by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Bartolomé del Presidio ability from step 1, putting a +1/+1 counter on it.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Yahenni by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Yahenni ability from step 1.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Woe Strider by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Woe Strider ability from step 1, causing you to scry 1.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Viscera Seer by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Viscera Seer ability from step 1, causing you to scry 1.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Goblin Bombardment by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Goblin Bombardment ability from step 1, dealing 1 damage to any target.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

Activate Carrion Feeder by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Carrion Feeder ability from step 1, putting a +1/+1 counter on it.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

Activate Bloodflow Connoisseur by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Bloodflow Connoisseur ability from step 1, putting a +1/+1 counter on it.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature except Priest of Gix that each have at least one +1/+1 counter on it.

Activate Blasting Station by tapping it and sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it and Blasting Station trigger.
Resolve the Priest of Gix trigger, adding .
Resolve the Blasting Station trigger, untapping it.
Repeat.

You control at least one creature that has at least one +1/+1 counter on it.

Activate Altar of Dementia by sacrificing Priest of Gix.
When Priest of Gix dies, Rakdos triggers.
Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Priest of Gix's power.
Cast Priest of Gix from exile by paying at most .
When Priest of Gix enters the battlefield, it triggers, adding .
Repeat.

You control at least one creature except Composite Golem with a +1/+1 counter on it.

Activate Composite Golem by sacrificing it, adding .
When Composite Golem dies, Enduring Renewal triggers, returning Composite Golem to your hand from your graveyard.
Cast Composite Golem by paying at most .
Repeat.
If you control two or more creatures with +1/+1 counters, this combo will net infinite colored mana.

You control at least two creatures that each have at least one +1/+1 counter on them.

Cast Ebondeath from your graveyard by paying .
Geralf's first ability triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on the Zombie Rogue equal to the number of other Zombies that entered the battlefield under your control.
When Ebondeath enters the battlefield, Geralf's second ability triggers, putting a number of +1/+1 counters on Ebondeath equal to the number of other Zombies that entered the battlefield under your control.
Activate Goblin Bombardment twice by sacrificing the Zombie Rogue and Ebondeath.
When the Zombie Rogue and Ebondeath die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Resolve both Goblin Bombardment abilities.
Activate the Treasures by tapping and sacrificing them, adding .
Repeat.

This combo will steadily put more +1/+1 counters on Ebondeath and the Zombie Rogue token, eventually resulting in an infinite number of them.