Army of the Damned is a mythic Sorcery card from Innistrad (ISD), collector number 87. Current market price: $1.55 (foil $44.04), TCGplayer market prices via Scryfall.
Create thirteen tapped 2/2 black Zombie creature tokens. Flashback {7}{B}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)