Death Bomb 
Instant
As an additional cost to cast this spell, sacrifice a creature. Destroy target nonblack creature. It can't be regenerated. Its controller loses 2 life.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL