Name: Altar of Dementia Cost: 2 CMC: 2 Color: CID: Type: Artifact Rules Text: Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power. Set/Rarity: Tempest rare, Conspiracy rare, Modern Horizons rare, The Brothers' War Retro Artifacts mythic Set Code: TMP-R, CNS-R, MH1-R, BRR-M Legality: Legal in duel, Legal in predh, Legal in historic, Legal in oathbreaker, Legal in commander, Legal in gladiator, Legal in legacy, Legal in penny, Legal in modern, Legal in timeless, Legal in vintage, Legal in brawl, Legal in premodern Price: $19.15 Foil price: $19.52