Culling the Weak 
Instant
As an additional cost to cast this spell, sacrifice a creature.
Add .
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
As an additional cost to cast this spell, sacrifice a creature.
Add .