Defiled Crypt

Whenever one or more cards leave your graveyard, create a 2/2 black Horror enchantment creature token.
This ability triggers only once each turn.

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Defiled Crypt

When you unlock this door, return target creature card from your graveyard to your hand. 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.