Name: Unholy Annex // Ritual Chamber (Borderless)
Brand: Magic
SKU: 6a49d66f55dc3d5b9fb570a6
Price: 8000 CLP
Availability: InStock

(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.)
 
Unholy Annex
 
At the beginning of your end step, draw a card. If you control a Demon, each opponent loses 2 life and you gain 2 life. Otherwise, you lose 2 life.
 / 
Ritual Chamber
 
When you unlock this door, create a 6/6 black Demon creature token with flying.