Synapse sliver
Galerider sliver
Shifting sliver
Psionic sliver
Telekinetic sliver
Mesmeric sliver
Jin-Gitaxias, Core Augur
Leeching sliver
Ink-Eyes, Servant of Oni
Hill Giant

Blood Artist (boring but nothing else does this and its needed)
Big Game Hunter
Murderous Rider (cheat in a spell)
Isareth the Awakener
Massacre Girl (where have you been all my life?)
Syr Konrad, the Grim
Custodi Lich
Mikaeus, the Unhallowed
Demon of Dark Schemes
Sheoldred, Whispering One

All right, here are my cards. I looked through green and black and found some holes for aggressive decks to fill. That last half of the sentence...

Phyrexian Negator
Cao Cao, Lord of Wei
Champion of Stray Souls
Kalitas, Traitor of Ghet
Razaketh, the Foulblooded

Deathmist Raptor
Boon Satyr
Nullhide Ferox
Vizier of the Menagerie
Jugan, the Rising Star

The quality of white's creatures was pretty low, so:
Giant Killer
Precinct Captain
Seeker of the Way
Restoration Angel
Monastery Mentor
Angel of Invention
Realm-Cloaked Giant
Academy Rector
Eternal Dragon
Angel of Serenity

Thopter aggro
Goblin Sharpshooter
Thopter Engineer
Purphoros, God of the Forge
Pia and Kiran Nalaar
Hellrider
Flametongue Kavu
Zealous Conscripts
Glorybringer
Thundermaw Hellkite
Hellkite Tyrant

For my 8 white "creatures", I'm building on an existing enchantment/equipment theme with:
Dawn Evangel
Ghostblade Eidolon
Archon of Sun's Grace
Heliod, God of the Sun
Celestial Archon
Archon of Falling Stars
Ancestral Blade
Spirit Mirror
Two of these are not technically creatures, but they make creatures.

For red, I will build on a minor discard theme with two madness creatures:
Stromkirk Occultist
Reckless Wurm

FISH = Cursecatcher
FANCY = Falkenrath Aristocrat
DUNE = Desert's Hold
DIZZY = Ardenvale Tactician/Dizzying Swoop
BUDDY = Benevolent Bodyguard

Radio: Transcantation
Hope: Light of Hope
Rocket: Luminous Broodmoth
Chef: Hot Soup
Float: Galepowder Mage

Blade - Blade Splicer
Disgusting - Necrotic Ooze
Storm - Crow Storm
RIP - Rest in Peace
Shoes - Kitesail Freebooter

bulky - Irencrag Pyromancer - hard to get a bigger butt without a defender
throw - throwing knife - I really wanted to do chaos orb, because that's would make Dennis's brow furl. I knew he'd really really try to figure out how to implement that remotely. Then I remembered Slaying Mantis. But, this throwing knife is always interesting. Although, I remembered it not being that expensive, mana wise, compared to an axe... I guess it's a magical throwing knife...
outpost - outpost siege - always loved this guy, although it's a nonbo with the pyromancer. She longs to breathe free, not hide behind walls. She's no defender. {Achievement: attack with 3 0-power creatures. I'll save the prize on a new sheet.}
sleep - sigil of sleep - geez, I knew there would be good sleep cards on gatherer, but I wanted to add like 80% of them! This one can be the brutalest. Also, one of my brother's favorite cards. Not attack damage!
music - musician - among the really old mtg artists, I've always really liked Drew Tucker.

Rodent: Marrow-Gnawer
Slippery: Slippery Bogle
Trap: Baloth Cage Trap
Dig: Dig Through Time
Ominous: Ominous Seas

wisp: Wispmare
teeth: Toothy, Imaginary Friend
armor: Umbra Mystic
coral: Spirit of the Labyrinth (in honor of maze-like corals)
hide: Watcher for Tomorrow

Tied with Dennis for the most votes of best round 4 picks. Prize: Add 5 more cards on your theme. One must be a creature or planeswalker on theme. Give it your name.

• Continuing the theme of Room Escapes and Puzzles: I'm adding a supersmart planeswalker who can become unbound if he thinks hard enough: Jace, Vryn's Prodigy. (Let me think about the renaming a bit.)
• I'm also adding the card "Do Escape". You'll have to cross out the "v".
• Also, "No Escape"
• And the truly odd art of "Escaped Shapeshifter.
• And finally, a thinky, puzzle-y card that will take me about five minutes to resolve because I take so long: Diabolic Vision

Tied with Tom for the most votes of best round 4 picks. Prize: Add 5 more cards on your theme. One must be a creature or planeswalker on theme. Give it your name.

A planeswalker that interacts with instant spells and four 2-mana instants, three with different keywords and one that's just weird.

Narset will be renamed Narset, Rigobert's Consort

Scott C unlocked a hidden achievement! "The Biggun's" - Unlock: Be the first person to nominate a card with cmc > 8. Prize: Nominate one of us: They become the mandatory fixer/ramper. Their next ten picks must all be fixing/ramp. To support your card. However, they get to rename your card after you.

• He nominated Scott S after adding Ghalta, Primal Hunger

Cards

• Rofellos, Llanowar Emissary -- he already gets you 2 power on his own so with only 5 forests, you can cast the Primal Dude
• Thran Dynamo -- 3 mana gets you pretty far... if you have a 1 and 2 drop... it might be enough for turn 5
• Arixmethes, Slumbering Isle gets you 2 mana... not bad... but the added bonus of turning it into a 12 power creature that only costs 4 is as good as you can get for 12 power creatures
• Grothama, All-Devouring -- even better though. Grothama only gets you 10 power for 5... BUT if you then attack with the Primal Dude next turn you draw 12 cards!
• Primeval Protector -- what's better than 1 big bad dude with a low cc? 2 big bad dudes! get him in cheap when your opponents overstretches and then follow it with the Primal Dude for G!

5 bad creatures (1 of each color)
5 bad spells (1 of each color)

Scott C getting caught up after his weekend away.

Simply green

All nice and simple, bad cards.

Micah convinced me that Aluren was actually a good card, so I am swapping out out for this.