Fleshwrither is a uncommon Creature — Horror card from Future Sight (FUT), collector number 84. Current market price: $3.55 (foil $28.02), TCGplayer market prices via Scryfall.
Transfigure {1}{B}{B} ({1}{B}{B}, Sacrifice this creature: Search your library for a creature card with the same mana value as this creature, put that card onto the battlefield, then shuffle. Transfigure only as a sorcery.)