Thunder Dragonduo [SOFU-EN022] Super Rare Sea Serpent If this card is sent

If this card is sent from the Spell & Trap Zone to the Graveyard: You can target 1 "Forbidden One" monster or "Exodia" card in your Graveyard

If this card in your possession is destroyed by an opponent's card (by battle or card effect) and sent to your Graveyard: You can add 1 Level 4 Machine-Type monster from your Deck to your hand

Your opponent must pay 500 LP to activate card effects

If this card was Tribute Summoned by Tributing a "Gadget" monster

you can select 1 of those equipped monsters

Thunder Dragonduo [SOFU-EN022] Super Rare Sea Serpent If this card is sentSet: Soul Fusion Card type: Effect Monster Rarity: Super Rare Attack: 2800 Defense: 0 Cannot be Normal Summoned Set. Must first be Special Summoned (from your hand) by banishing 1 LIGHT and 1 DARK monster from your GY. Once per turn, if a monster effect is activated in the hand: This card gains 300 ATK until the end of this turn. When this card destroys an opponent's monster by battle, you can banish 1 card from your GY: Add 1 Thunder monster from