Kin-Tree Warden is a common Creature — Human Warrior card from Khans of Tarkir (KTK), collector number 139. Current market price: $0.03 (foil $0.25), TCGplayer market prices via Scryfall.
{2}: Regenerate this creature. Morph {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.)