Severed Strands 
Sorcery
As an additional cost to cast this spell, sacrifice a creature. You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL