Cloudstone Curio [Kaladesh Inventions] 160 sacrifice it unless you sacrifice

sacrifice it unless you sacrifice a Forest

Whenever Brimaz blocks a creature

Whenever a creature token enters the battlefield under your control

the insanity that pervades the Underdark escalates and threatens to shake the Forgotten Realms to its foundations

You may cast that card as long as it remains exiled

Cloudstone Curio [Kaladesh Inventions] 160 sacrifice it unless you sacrificeSet: Kaladesh Inventions 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. With innovative stabilizing techniques, Suja Pavani brings this piece of the sky itself to the Inventors' Fair.