Ghoul's Feast 
Instant
Target creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard.