Pine Walker is a uncommon Creature — Elemental card from Khans of Tarkir (KTK), collector number 143. Current market price: $0.26 (foil $0.33), TCGplayer market prices via Scryfall.
Morph {4}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) Whenever this creature or another creature you control is turned face up, untap that creature.