Altar of Dementia [Tempest] XY200a or if this card in

or if this card in its owner's possession is destroyed by an opponent's card effect: You can send the top 3 cards of your Deck to the Graveyard

Set: EX: Legend Maker Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

Set: Wizards of the Coast: Black Star Promos Type: Colorless Rarity: Black Star Promo

Set: Base Set 1st Edition Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Altar of Dementia [Tempest] XY200a or if this card inSet: Tempest 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