As Cloud Key enters the battlefield, 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.
Near Mint - $6.00
Lightly Played - $5.40
Played - $4.20
Heavily Played - $3.60
Damaged - $3.00
Near Mint Non-English - $6.00
Lightly Played Non-English - $5.40
Played Non-English - $4.20
Heavily Played Non-English - $3.60
Damaged Non-English - $3.00