Maxie, Magma Heart

+1: Gain control of up to one target creature an opponent controls until end of turn. Put a loyalty counter on Maxie if that creature is Red.
0: Sacrifice a creature, Maxie, Magma Heart deals damage equal to that creature's power to target creature an opponent controls.
-7: You get an emblem with "Whenever creature enters the battlefield under your control, it deals damage equal to its power to any target.