Iron Man

When the only other players are Earth, their teammates, and your teammates, reveal Iron Man.
You all win the game. When there is no Earth,
you lose.
You may flip this card face up at any time. When
you do, create X treasure tokens, where X is the
number of nonland permanents you control.
Then, you may do 12 damage to any target
creature or planeswalker. If it dies, it can't be regenerated.