Anafenza, Kin-Tree Spirit is a rare Legendary Creature — Spirit Soldier card from Dragons of Tarkir Promos (PDTK), collector number 2s. Current market price: — (foil $1.50), TCGplayer market prices via Scryfall.
Whenever another nontoken creature you control enters, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)