Poseidra, the Rumbling Atlantean
Level 7 WATER Sea Serpent Effect Monster
ATK/ 2800 DEF/ 1600
You can only use the 1st and 2nd effect of this card's name each once per turn.
(1) You can send 1 other WATER monster from your hand or face-up field to the GY; Special Summon this card from your hand.
(2) If this card is Normal or Special Summoned: You can send 1 "Atlantean" or "Mermail" monster from your Deck to the GY, then target 1 card your opponent controls; return it to the hand.
(3) Your opponent's monsters cannot target this card for attacks while you control a monster other than "Poseidra the Rumbling Atlantean".
Abysstrite, the Atlantean Spirit
Rank 7 WATER Sea Serpent Xyz Effect Monster
ATK/ 2100 DEF/ 2800
2+ Level 7 WATER monsters
You can only use the 1st and 3rd effect of this card's name each once per turn.
(1) If this card is Xyz Summoned: You can target 1 Level 7 or lower Fish, Sea Serpent, or Aqua monster in your GY; Special Summon it.
(2) WATER monsters you control gain 300 ATK/DEF for each material attached to this card.
(3) You can detach 1 material from this card; Set 1 “Abyss-" Trap from your Deck.
Abyss-team
Normal Trap Card
You can only use the 1st and 2nd effect of this card's name each once per turn.
(1) Draw cards equal to the number of different Types among Fish, Sea Serpent, and Aqua monsters you control, also you cannot Special Summon from the Extra Deck until the end of your next turn after this card resolves, except WATER monsters.
(2) If a face-up WATER monster(s) you control is destroyed by battle or card effect while this card is in your GY: You can banish this card; add 1 "Mermail” monster from your GY or banishment to your hand.