Thunder Dragon Colossus [OP10-EN001] Ultimate Rare Dragon [x2] When Special Summoned this way:

When Special Summoned this way: Activate the appropriate effect

Set: XY: Primal Clash Type: Fire Rarity: Promo Retreat cost: Colorless

Set: Dark Revelation Volume 3 Card type: Effect Monster Rarity: Rare Attack: 1800 Defense: 1000 If this card attacks a face-up Defense Position monster

and give this card the same effects as that monster

very few have faced this awesome creature and lived to tell the tale

Thunder Dragon Colossus [OP10-EN001] Ultimate Rare Dragon [x2] When Special Summoned this way:Set: 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.