Legendary Atlantean Tridon [LTGY-EN033] Common Normal Trap You can only use the

You can only use the effect of "Mermail Abyssocea" once per turn

he gained formidable power through body reconstruction

• Once per battle

that Set card cannot be activated until the end of your opponent's next turn

equip 1 appropriate LIGHT Machine-Type Union monster with a different name

Legendary Atlantean Tridon [LTGY-EN033] Common Normal Trap You can only use theSet: Lord of the Tachyon Galaxy Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 800 You can Tribute this card and 1 Sea Serpent Type monster; Special Summon 1 "Poseidra, the Atlantean Dragon" from your hand or Deck, then all monsters your opponent currently controls lose 300 ATK.