Cloud Key (FUT) #160 [EN/N]

{3} · Artifact · As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast. · The musical sound of its turning triggers the tumblers of revelation. · Illustrated by Trevor Hairsine · Future Sight #160 · EDHREC rank 618 · Magic: The Gathering, MTG