Necromentia is a rare Sorcery card from Core Set 2021 (M21), collector number 116. Current market price: $0.30 (foil $0.30), TCGplayer market prices via Scryfall.
Choose a card name other than a basic land card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles, then creates a 2/2 black Zombie creature token for each card exiled from their hand this way.