Cloud Key (Retro Schematic) [The Brothers' War Retro Artifacts] RC23 Set: Black & White: Dark

Set: Black & White: Dark Explorers Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

{B}: Regenerate Laquatus's Champion

Set: Antiquities Type: Artifact Rarity: Uncommon Cost: {2} {2}

yet somehow they seem like a warning

Set: Summer Magic / Edgar Type: Sorcery Rarity: Rare Cost: {B} Remove Contract from Below from your deck before playing if you're not playing for ante

Cloud Key (Retro Schematic) [The Brothers' War Retro Artifacts] RC23 Set: Black & White: DarkSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {3} 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