[FOIL] Cloud Key (Schematic)
From The Brothers' War Retro Artifacts
Card details
Artifact
Rare
As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost 
less to cast.
"A key only unlocks a door. Its wielder must choose whether to cross the threshold."
—*Hurkyl's Metaphysics, vol. II*
Artist: Trevor Hairsine
Card details
Artifact
Rare
As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost less to cast.
"A key only unlocks a door. Its wielder must choose whether to cross the threshold."
—*Hurkyl's Metaphysics, vol. II*
Artist: Trevor Hairsine
All versions of Cloud Key
