Fleshtaker is a uncommon Creature — Human Assassin card from Innistrad: Midnight Hunt (MID), collector number 222. Current market price: $0.26 (foil $0.14), TCGplayer market prices via Scryfall.
Whenever you sacrifice another creature, you gain 1 life and scry 1. (Look at the top card of your library. You may put that card on the bottom.) {1}, Sacrifice another creature: This creature gets +2/+2 until end of turn.