Thought Devourer [Odyssey] Champion Pack 3 destroy all face-up monsters except

destroy all face-up monsters except this monster on the field

also send the other revealed cards to the Graveyard

You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities

Set: Hidden Arsenal 2 Card type: Synchro/Effect Monster Rarity: Secret Rare Attack: 2400 Defense: 1200 "Genex Controller" + 1 or more FIRE non-Tuner Monsters This card gains 200 ATK for each FIRE monster in your Graveyard

Thought Devourer [Odyssey] Champion Pack 3 destroy all face-up monsters exceptSet: Odyssey Type: Creature Beast Rarity: Rare Cost: {2}{U}{U} Flying Your maximum hand size is reduced by four. Thinking is hard.