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.
"A key only unlocks a door. Its wielder must choose whether to cross the threshold."
—*Hurkyl's Metaphysics, vol. II*
Near Mint Foil - £400.00
Lightly Played Foil - £340.00
Moderately Played Foil - £280.00
Heavily Played Foil - £200.00
Damaged Foil - £120.00
Near Mint Foil Non English - £400.00
Lightly Played Foil Non English - £340.00
Moderately Played Foil Non English - £280.00
Heavily Played Foil Non English - £200.00
Damaged Foil Non English - £120.00