Ghoulcaller's Harvest
Innistrad: Midnight Hunt Promos (PMID #225s)
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Ghoulcaller's Harvest
CMC: 2
Type
Sorcery
Rules Text
Create X 2/2 black Zombie creature tokens with decayed, where X is half the number of creature cards in your graveyard, rounded up. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)
Flashback 
(You may cast this card from your graveyard for its flashback cost. Then exile it.)
Printing
Innistrad: Midnight Hunt Promos (PMID #225s)
rare
Illustrated by Anna Steinbauer