Altar of Dementia [Modern Horizons] Commander's Arsenal treat this card's name as

treat this card's name as that monster's name

if Bloodchief Ascension has three or more quest counters on it

if your other DARK Spellcaster-Type monster battles an opponent's monster: You can send this card from your hand or face-up from your field to the Graveyard

Set: Ninth Edition Type: Creature — Spirit Rarity: Rare Cost: {3}{G}{G} Untap all permanents you control during each other player's untap step

any battle damage your opponent takes from attacks involving this card this turn is halved

Altar of Dementia [Modern Horizons] Commander's Arsenal treat this card's name asSet: 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