Moan of the Unhallowed 
Sorcery
Create two 2/2 black Zombie creature tokens.
Flashback 
(You may cast this card from your graveyard for its flashback cost. Then exile it.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL