Kindness Anon and I came up with a really dumb idea together, culminating in a 9-drop enchantment:
"I Couldn't Think Of A Clever Name" (Represented by Darksteel Forge)
9
Legendary Enchantment
Creatures you control get +X/+X for each creature type they have, where X is the number of creature types they have.
This means a Human Warrior would get +2/+2 twice, so +4/+4. A Zombie Elf Rogue would get a total of +9/+9. And a creature with Changeling would get +78961/+78961. So naturally, the win condition of this deck is to race out this enchantment as fast as possible and then attack with a trample/lifelink changeling to either win instantly or get practically infinite life.
The deck has 4 key pillars. The first is defense; we need to stall to get our win condition, and no amount of mana ramp will save us from an aggro deck. The second is search effects to help get the enchantment into our hand. The third is ramp and/or ways to get the enchantment onto the battlefield without paying its cost. And the fourth is changelings, to actually win.
The defense is provided by Swords to Plowshares, Fierce Retribution, Settle the Wreckage, and March of Wretched Sorrow, as well as a Masked Vandal to both block and increase my changeling consistency. The searching comes from Academy Rector, which both searches and cheats out the enchantment. The ramp comes from Birds of Paradise and Cultivate. And the changelings are Game-Trail Changeling and Changeling Outcast, which both end the game in a single attack.
The only semblance of a backup plan this deck has is stalling the opponent out and chipping away with Outcast. Also, if the opponent has the right removal (remove changelings, remove enchantment, exile Rector, counterspells) I lose. So yeah. Probably not a good deck.
