Thunder Dragon Colossus [OP10-EN001] Ultimate Rare The Falsebound Kingdom You can only activate 1

You can only activate 1 "Spellbook of Power" per turn

destroy all monsters on your opponent's side of the field

remove from play all monsters that were Special Summoned by this effect

This card cannot be Special Summoned except by the effect of "Photon Generator Unit"

Thunder Dragon Colossus [OP10-EN001] Ultimate Rare The Falsebound Kingdom You can only activate 1Set: OTS Tournament Pack 10 Card type: Fusion Effect Monster Rarity: Ultimate Rare Attack: 2600 Defense: 2400 "Thunder Dragon" + 1 Thunder monster Must be either Fusion Summoned, or Special Summoned during the turn a Thunder monster's effect was activated in the hand, by Tributing 1 Thunder Effect non Fusion Monster (in which case you do not use "Polymerization"). Cards cannot be added from the Main Deck to your opponent's hand except by drawing them.