Ghouls' Night Out is a rare Sorcery card from Midnight Hunt Commander (MIC), collector number 57. Current market price: $0.96, TCGplayer market prices via Scryfall.
For each player, choose a creature card in that player's graveyard. Put those cards onto the battlefield under your control. They're black Zombies in addition to their other colors and types and they gain decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)