Naga Fleshcrafter is a rare Creature — Snake Shapeshifter card from Tarkir: Dragonstorm Promos (PTDM), collector number 52p. Current market price: $0.41 (foil $1.12), TCGplayer market prices via Scryfall.
You may have this creature enter as a copy of any creature on the battlefield. Renew — {2}{U}, Exile this card from your graveyard: Put a +1/+1 counter on target nonlegendary creature you control. Each other creature you control becomes a copy of that creature until end of turn. Activate only as a sorcery.