|"Experimental Lab // Staff Room", |"Laboratoire d'expérimentation // Salle du personnel", |"Duskmourn: House of Horror Commander" (2)
When you unlock this door, manifest dread, then put two +1/+1 counters and a trample counter on that creature.
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
Whenever a creature you control deals combat damage to a player, turn that creature face up or put a +1/+1 counter on it.
Gatherer works better in the Companion app!