Culling Ritual is a rare Sorcery card from Strixhaven: School of Mages Promos (PSTX), collector number 172p. Current market price: $1.96 (foil $3.87), TCGplayer market prices via Scryfall.
Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.