Grafted Identity is a rare Enchantment — Aura card from Innistrad: Midnight Hunt Promos (PMID), collector number 57p. Current market price: $0.15 (foil $0.40), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, sacrifice a creature. Enchant creature You control enchanted creature. Enchanted creature gets +1/+1.