Urza's Engine

You may exile a green card from your hand rather than pay this spell's mana cost. Distribute three +1/+1 counters among one, two, or three target creatures. For each +1/+1 counter you put on a creature this way, remove a +1/+1 counter from that creature at the beginning of the next cleanup step.

Nonartifact creatures get -1/-1 until end of turn.

1: This creature's power becomes the toughness of target creature blocking or being blocked by this creature minus 1 until end of turn, and its toughness becomes 1 plus the power of that creature until end of turn.

You may pay 1 life and exile a black card from your hand rather than pay this spell's mana cost. Distribute two -2/-1 counters among one or two target creatures.

1, T: Target land becomes the basic land type of your choice until end of turn.

Flying At the beginning of your upkeep, put a wage counter on this creature. You may pay 2 for each wage counter on it. If you don't, remove all wage counters from this creature and an opponent gains control of it.

First strike 1B: Regenerate this creature.

Nonartifact creatures get -1/-1 until end of turn.