One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Altar of Dementia by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed Lhurgoyf's power.
Repeat.

Activate Thran Dynamo by tapping it, adding .
Activate Mimic Vat by paying and tapping it, creating a token copy of Myr Battlesphere with haste.
Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
Activate Clock of Omens by tapping two Myrs, untapping Mimic Vat.
Activate Clock of Omens by tapping two Myrs, untapping Thran Dynamo.
Repeat.

Activate Basalt Monolith's first ability by tapping it, adding .
Activate Mimic Vat by paying and tapping it, creating a token copy of Myr Battlesphere with haste.
Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
Activate Clock of Omens by tapping two Myrs, untapping Mimic Vat.
Activate Clock of Omens by tapping two Myrs, untapping Basalt Monolith.
Repeat.

Activate Dreamstone Hedron's first ability by tapping it, adding .
Activate Mimic Vat by paying and tapping it, creating a token copy of Myr Battlesphere with haste.
Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
Activate Clock of Omens by tapping two Myrs, untapping Mimic Vat.
Activate Clock of Omens by tapping two Myrs, untapping Dreamstone Hedron.
Repeat.

Activate Mimic Vat by paying and tapping it, creating a token copy of Coretapper with haste that will be exiled at the beginning of the next end step.
Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
At the beginning of the end step, the delayed ability from Mimic Vat triggers, failing to exile anything.
Repeat each turn.

Activate Mana Vault by tapping it, adding .
Activate Mimic Vat by paying and tapping it, creating a token copy of Myr Battlesphere with haste.
Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
Activate Clock of Omens by tapping two Myrs, untapping Mimic Vat.
Activate Clock of Omens by tapping two Myrs, untapping Mana Vault.
Repeat.

Activate Mimic Vat, putting a token copy of Myr Battlesphere onto the battlefield.
The Myr Battlesphere Token triggers, creating four Myr tokens.
Activate Time Sieve, sacrificing Myr Battlesphere and the 4 Myr tokens, getting an extra turn.
Pass the turn.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Viscera Seer by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Viscera Seer ability, causing you to scry 1.
Repeat.

Activate Grim Monolith's first ability by tapping it, adding .
Activate Mimic Vat by paying and tapping it, creating a token copy of Myr Battlesphere with haste.
Myr Battlesphere enters the battlefield, creating four 1/1 Myr creature tokens.
Activate Clock of Omens by tapping two Myrs, untapping Mimic Vat.
Activate Clock of Omens by tapping two Myrs, untapping Grim Monolith.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Phyrexian Altar by sacrificing a nontoken Lhurgoyf, adding one mana of any color.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Ashnod's Altar by sacrificing a nontoken Lhurgoyf, adding .
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Repeat.

Activate Mimic Vat by paying and tapping it, creating a token copy of Triplicate Titan with haste.
Activate Krark-Clan Ironworks by sacrificing the Triplicate Titan token, adding .
The token Triplicate Titan dies, creating three 3/3 Golem artifact creature tokens.
Activate Clock of Omens by tapping two Golems, untapping Mimic Vat.
Activate Krark-Clan Ironworks by sacrificing a Golem, adding .
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Goblin Bombardment by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
Repeat.

Activate Mimic Vat by paying and tapping it, creating a token copy of Triplicate Titan with haste.
Activate Ashnod's Altar by sacrificing the Triplicate Titan token, adding .
The token Triplicate Titan dies, creating three 3/3 Golem artifact creature tokens.
Activate Clock of Omens by tapping two Golems, untapping Mimic Vat.
Activate Ashnod's Altar by sacrificing a Golem, adding .
Repeat.

Activate Mimic Vat by paying and tapping it, creating a token copy of Phyrexian Triniform with haste.
Activate Ashnod's Altar by sacrificing the Phyrexian Triniform token, adding .
The token Phyrexian Triniform dies, creating three 3/3 Golem artifact creature tokens.
Activate Clock of Omens by tapping two Golems, untapping Mimic Vat.
Activate Ashnod's Altar by sacrificing a Golem, adding .
Repeat.

Activate Mimic Vat by paying and tapping it, creating a token copy of Phyrexian Triniform with haste.
Activate Krark-Clan Ironworks by sacrificing the Phyrexian Triniform token, adding .
The token Phyrexian Triniform dies, creating three 3/3 Golem artifact creature tokens.
Activate Clock of Omens by tapping two Golems, untapping Mimic Vat.
Activate Krark-Clan Ironworks by sacrificing a Golem, adding .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Eternal Scourge dies, triggering Mimic Vat, exiling Eternal Scourge.
Cast Eternal Scourge from exile by paying .
Nalfeshnee triggers, creating a token copy of Eternal Scourge with haste.
Activate Ashnod's Altar by sacrificing the Eternal Scourge token, adding .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat triggers, exiling Eternal Scourge.
Cast Eternal Scourge from exile by paying .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Faldorn triggers, creating a 2/2 Wolf creature token.
Activate Ashnod's Altar by sacrificing the Wolf, adding .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Pitiless Plunderer and Mimic Vat trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure artifact token.
Resolve the Mimic Vat trigger, exiling Eternal Scourge from your graveyard.
Activate the Treasure by tapping and sacrificing it, adding .
Cast Eternal Scourge from exile by paying .
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Carrion Feeder by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat's imprint ability triggers, exiling Eternal Scourge and returning any previously exiled creatures to their owners' graveyards.
Cast Eternal Scourge for .
Prosper triggers, creating a Treasure token.
Resolve Eternal Scourge, allowing it to enter the battlefield.
Activate the Treasure token by tapping and sacrificing it, adding one mana of any color.
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Pawn of Ulamog and Mimic Vat trigger.
Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token.
Resolve the Mimic Vat trigger, exiling Eternal Scourge from your graveyard.
Activate the Eldrazi Spawn by sacrificing it, adding .
Cast Eternal Scourge from exile by paying .
Repeat.

Opponents can not block Medomai token.

Pay and tap Mimic Vat to create a copy of Identity Thief with haste.
Attack with the Identity Thief token, triggering it and exiling Medomai the Ageless until end of turn.
the Identity Thief token will deal combat damage as a copy of Medomai the Ageless, granting you an extra turn.
At the end of the turn, Medomai the Ageless returns to the battlefield.
Sacrifice the token.
Repeat for infinite turns.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Thermopod by sacrificing a nontoken Lhurgoyf, adding .
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Iraxxa triggers, creating a 2/2 Alien Warrior creature token.
Activate Ashnod's Altar twice by sacrificing the Alien Warrior and Eternal Scourge, adding .
Repeat from step 2.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Yahenni by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Yahenni ability.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Woe Strider by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Woe Strider ability, causing you to scry 1.
Repeat.

At least 5 +1/+1 counters on Ozolith.

Activate Mimic Vat, making a token copy of Floodchaser which enters as a 0/0 with six +1/+1 counters.
Go to combat, moving all counters from Ozolith onto Sage of Hours.
Activate Sage of Hours, removing all +1/+1 counters on it, gaining an extra turn.
Pass the turn.
At the beginning of your end step, the Floodchaser token triggers, exiling itself.
The Ozolith triggers, putting six +1/+1 counters on itself.
Repeat.

Activate Mimic Vat by paying , creating two token copies of Corridor Monitor with haste.
The Corridor Monitor tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Corridor Monitor tokens, adding .
Repeat.

Activate Mimic Vat by paying , creating two token copies of Corridor Monitor with haste.
The Corridor Monitor tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Corridor Monitor tokens, adding .
Repeat.

Activate Mimic Vat by paying , creating two token copies of Corridor Monitor with haste.
The Corridor Monitor tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Corridor Monitor tokens, adding .
Repeat.

You control at least two creatures that can attack this turn.
You have at least two opponents.

Declare at least two creatures you control as attackers, attacking at least two opponent.
Liara triggers, causing all spells you cast from exile this turn to cost at least less, and exiling at least two cards from the top of your library and allowing you to play them this turn.
Move to your post-combat main phase.
Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Repeat from step 4.

Activate Goblin Bombardment by sacrificing Eternal Scourge.
Mimic Vat triggers, exiling Eternal Scourge from your graveyard and returning any previously exiled creatures to their owners' graveyards.
Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
Cast Eternal Scourge for .
Prosper triggers, creating a Treasure token.
Resolve Eternal Scourge, allowing it to enter the battlefield.
Activate the Treasure token by tapping and sacrificing it, adding one mana of any color.
Repeat.

Activate Altar of Dementia by sacrificing Eternal Scourge.
Mimic Vat triggers, exiling Eternal Scourge from your graveyard and returning any previously exiled creatures to their owners' graveyards.
Resolve the Altar of Dementia ability, milling target player for an amount equal to Eternal Scourge's power.
Cast Eternal Scourge for .
Prosper triggers, creating a Treasure token.
Resolve Eternal Scourge, allowing it to enter the battlefield.
Activate the Treasure token by tapping and sacrificing it, adding one mana of any color.
Repeat.

Activate Phyrexian Altar by sacrificing Eternal Scourge, adding one mana of any color.
Mimic Vat triggers, exiling Eternal Scourge from your graveyard and returning any previously exiled creatures to their owners' graveyards.
Cast Eternal Scourge for .
Prosper triggers, creating a Treasure token.
Resolve Eternal Scourge, allowing it to enter the battlefield.
Activate the Treasure token by tapping and sacrificing it, adding one mana of any color.
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Sifter of Skulls and Mimic Vat trigger.
Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token.
Resolve the Mimic Vat trigger, exiling Eternal Scourge from your graveyard.
Activate the Eldrazi Scion by sacrificing it, adding .
Cast Eternal Scourge from exile by paying .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Repeat.

Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
Mimic Vat triggers, exiling Eternal Scourge from your graveyard and returning any previously exiled creatures to their owners' graveyards.
Cast Eternal Scourge for .
Prosper triggers, creating a Treasure token.
Resolve Eternal Scourge, allowing it to enter the battlefield.
Activate the Treasure token by tapping and sacrificing it, adding one mana of any color.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Blasting Station by tapping it and sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
When the Lhurgoyf enters the battlefield, Blasting Station triggers, untapping Blasting Station.
Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
Repeat.

Cast Eternal Scourge from exile by paying .
Appa's second ability triggers, creating a 1/1 Ally creature token.
Activate Ashnod's Altar twice by sacrificing Eternal Scourge and the Ally, adding .
When Eternal Scourge dies, Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Repeat.

You can forego sacrificing the Ally during an iteration if mana allows.

Power Artifact attached to Mimic Vat.

Sacrifice Dross Scorpion to Ashnod's Altar, generating two generic mana.
Imprint Mimic Vat with Dross Scorpion.
Activate Mimic Vat for 1 mana, creating a token copy of Dross Scorpion.
Sacrifice Dross Scorpion to Ashnod's Altar, and target Mimic Vat with its death trigger.

Activate Phyrexian Altar by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Repeat.

Activate Mimic Vat by paying , creating two token copies of Deceiver Exarch with haste.
The Deceiver Exarch tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Deceiver Exarch tokens, adding .
Repeat.

Activate Mimic Vat by paying , creating two token copies of Deceiver Exarch with haste.
The Deceiver Exarch tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Deceiver Exarch tokens, adding .
Repeat.

Activate Mimic Vat by paying , creating two token copies of Deceiver Exarch with haste.
The Deceiver Exarch tokens enter the battlefield, untapping Mimic Vat and any other permanent you control.
Activate Ashnod's Altar twice by sacrificing both Deceiver Exarch tokens, adding .
Repeat.

At least five +1/+1 counters on The Ozolith.
At least four other creatures on the battlefield.

Activate Mimic Vat, making a token copy of Custodi Soulbinders which enters as a 0/0 with five +1/+1 counters.
Go to combat, moving all counters from Ozolith onto Sage of Hours.
Activate Sage of Hours, removing all +1/+1 counters on it, gaining an extra turn.
Pass the turn.
At the beginning of your end step, the Custodi Soulbinders token triggers, exiling itself.
The Ozolith triggers, putting five +1/+1 counters on itself.
Repeat.

Activate Thermopod's second ability by sacrificing Eternal Scourge, adding .
When Eternal Scourge dies, Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying .
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Bloodflow Connoisseur by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Bartolomé del Presidio by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Bartolomé del Presidio ability, putting a +1/+1 counter on it.
Repeat.

One Lhurgoyf must be on the battlefield, with the other exiled by Mimic Vat.

Activate Shilgengar by sacrificing a nontoken Lhurgoyf.
When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
Resolve the Shilgengar ability, creating a Blood token.
Repeat.

Any mana rock that generates at least one mana.

Sacrifice Dross Scorpion to Ashnod's Altar, generating two generic mana.
Imprint Mimic Vat with Dross Scorpion.
Activate Mimic Vat, creating a token copy of Dross Scorpion.
Sacrifice Dross Scorpion to Ashnod's Altar, targeting Mimic Vat and the mana rock with Dross Scorpion's two death triggers (second from Teysa).

You have a way to kill Polukranos.

Kill Polukranos, triggering Mimic Vat's imprint ability and The Ozolith's first ability.
Resolve the Mimic Vat trigger, exiling Polukranos.
Resolve the The Ozolith trigger, putting six +1/+1 counters on it.
Activate Mimic Vat by paying and tapping it, creating a token copy of Polukranos with haste that enters with six +1/+1 counters on it.
At the beginning of combat on your turn, The Ozolith's second ability triggers, putting all counters on The Ozolith onto Sage of Hours.
Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
At the beginning of your end step, Mimic Vat triggers, exiling the Polukranos token.
The Polukranos token leaves the battlefield, triggering The Ozolith, putting six +1/+1 counters on The Ozolith.
Repeat from step 4 each turn.