Scourge of Nel Toth 
Creature — Zombie Dragon
Flying
You may cast this creature from your graveyard by paying and sacrificing two creatures rather than paying its mana cost.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL