Ouroboroid

Exile target creature or Spacecraft.

(T: Add G.)

(T: Add W.)

(T: Add W.)

When this creature leaves the battlefield, draw a card, then you may put a permanent card with mana value less than or equal to the number of lands you control from your hand onto the battlefield tapped. Warp 4 (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Whenever an artifact you control enters, put a loyalty counter on Tezzeret. 0: Untap target artifact or creature. If it's an artifact creature, put a +1/+1 counter on it. −3: Search your library for an artifact card with mana value 1 or less, reveal it, put it into your hand, then shuffle. −7: You get an emblem with "At the beginning of combat on your turn, put three +1/+1 counters on target artifact you control. If it's not a creature, it becomes a 0/0 Robot artifact creature."

When this creature enters, exile up to one target non-Assassin creature until this creature leaves the battlefield. Warp 1W (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Flying When this creature enters, return target noncreature, nonland permanent card with mana value X or less from your graveyard to the battlefield, where X is the amount of mana spent to cast this creature. Warp 2W