Superdreadnought Rail Cannon Gustav Max [LART-EN018] Ultra Rare 263 While this card is face-up

While this card is face-up on the field

If this card is destroyed by battle and sent to the Graveyard

by Tributing 1 Thunder Effect non-Fusion Monster (in which case you do not use "Polymerization")

Set: Pikachu World Collection Promos Type: Lightning Rarity: Promo

the selected card can attack as many times as the number of monster(s) on your side of the field when this card resolves

Superdreadnought Rail Cannon Gustav Max [LART-EN018] Ultra Rare 263 While this card is face-upSet: The Lost Art Promotion Card type: Xyz Effect Monster Rarity: Ultra Rare Attack: 3000 Defense: 3000 2 Level 10 monsters Once per turn: You can detach 1 Material from this card; inflict 2000 damage to your opponent.