Legendary Atlantean Tridon

Name: Legendary Atlantean Tridon

Attribute: WATER

Type: Sea Serpent/Effect

Level: 3

ATK/DEF: 1600/800

Lore
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.