Cloud Key - [Schematic] The Brothers' War Retro Artifacts (BRR) Creature Castle Locthwain enters the battlefield

Castle Locthwain enters the battlefield tapped unless you control a Swamp

and you decide whether to flip again

Put a number of +1/+1 counters on it equal to the amount of life you gained this turn or the amount of life you lost this turn

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"At this rate I fully expect to be replaced by a clockwork golem by year's end

Cloud Key - [Schematic] The Brothers' War Retro Artifacts (BRR) Creature Castle Locthwain enters the battlefieldAs 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*