Shadowglade Scavenger

When this creature enters, create a Food token.(It’s an artifact with “{2},{T} Sacrifice this token: You gain 3 life.”){/I} {x}{G},{T}, Forage: Return target permanent card with mana value X or less from your graveyard to your hand. Activate only as a sorcery. (To forage, exile three cards from your graveyard or sacrifice a Food.)