Mirror Room // Fractured Realm (Duskmourn: House of Horror 337) - Mythic Magic: The Gathering Card

When you unlock this door, create a token that's a copy of target creature you control, except it's a Reflection in addition to its other creature types.
(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.)