Altar of Dementia [Modern Horizons] Phyrexian Demon Set: Return to Ravnica Type:

Set: Return to Ravnica Type: Land — Plains Island Rarity: Rare ({T}: Add {W} or {U}

Who is truer: you who are

Set: Unlimited Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

If a player does either

put a +1/+1 counter on each Vampire you control

Altar of Dementia [Modern Horizons] Phyrexian Demon Set: Return to Ravnica Type:Set: Modern Horizons Type: Artifact Rarity: Rare Cost: {2} Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power. "It is not that you will go mad. It is that you will beg for madness." Volrath