Altar of Dementia [Modern Horizons] Commander's Arsenal any battle damage your opponent

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

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: OTS Tournament Pack 1 Card type: Fusion Monster Rarity: Common Attack: 1200 Defense: 900 "Skull Servant" + "Battle Warrior"

if a "Sinister Serpent" is in your Graveyard

Altar of Dementia [Modern Horizons] Commander's Arsenal any battle damage your opponentSet: 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