Greenwarden of Murasa is a mythic Creature — Elemental card from Lorwyn Eclipsed Commander (ECC), collector number 110. Current market price: $0.26, TCGplayer market prices via Scryfall.
When this creature enters, you may return target card from your graveyard to your hand. When this creature dies, you may exile it. If you do, return target card from your graveyard to your hand.