Geralf, Visionary Stitcher 
Legendary Creature — Human Wizard
Zombies you control have flying.
, 
, Sacrifice another nontoken creature: Create an X/X blue Zombie creature token, where X is the sacrificed creature's toughness.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL