Surgical Suite // Hospital Room

When you unlock this door, return target creature card with mana value 3 or less from your graveyard to the battlefield.

(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.)

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Whenever you attack, put a +1/+1 counter on target attacking 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.)