Elessar, the Elfstone - Cloudstone Curio (Serialized) [The Lord of the Rings: Tales of Middle-Earth Commander]Set: The Lord of the Rings: Tales of Middle Earth Commander Type: Artifact Rarity: Mythic Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent type with it to its owner's hand. Aragorn took the green stone and held it up, and there came a green fire from his hand.