Cloud Key

Artifact, 3 (3)
As Cloud Key comes into play, choose artifact, creature, enchantment, instant, or sorcery.
Spells you play of the chosen type cost {1} less to play.
The musical sound of its turning triggers the tumblers of revelation.
Illus. Trevor Hairsine

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Future Sight (Rare)