Altar of Dementia [Tempest] The Legend of Blue Eyes White Dragon You can activate this effect

You can activate this effect during either player's turn

but it cannot attack

Set: Hobby League 2 Card type: Normal Spell Rarity: Ultra Rare Attack: 0 Defense: 0 Destroy all Spell and Trap Cards on the field

this card negates the effects of your opponent's Spell

Set: Generation Force Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 2300 Defense: 1000 1 Tuner + 1 or more non-Tuner monsters When this card is Synchro Summoned: Target 1 face-up Synchro Monster your opponent controls

Altar of Dementia [Tempest] The Legend of Blue Eyes White Dragon You can activate this effectSet: 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