Altar of Dementia [Tempest] Instant Tap two untapped creatures you

Tap two untapped creatures you control: Return target permanent to its owner's hand

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Set: Commander 2017 Type: Creature — Vampire Shaman Rarity: Uncommon Cost: {2}{B}

Set: Commander 2014 Type: Instant Rarity: Rare Cost: {1}{U} Return target nonland permanent you don't control to its owner's hand

Altar of Dementia [Tempest] Instant Tap two untapped creatures youSet: Tempest Type: Artifact Rarity: Rare Cost: {2} Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of his or her library into his or her graveyard. "It is not that you will go mad. It is that you will beg for madness." Volrath