Altar of Dementia - Retro Schematic Tweet Out of stock. CAD$ 16.98 Wishlist Sell This Product Details Color: Artifact Card Text: Sacrifice a creature: Target player mills cards equal to the sacrificed creatures power. Rarity: M Cost: 2 Card Type: Artifact Name: Altar of Dementia Finish: Regular Card Number: 66 Set Name: The Brothers' War Retro Artifacts