WATER 4

All Level 3 or lower Sea Serpent-Type monsters you control can attack your opponent directly. When this card is sent to the Graveyard to activate a WATER monster's effect: Add 1 Sea Serpent-Type monster from your Deck to your hand, except "Atlantean Dragoons".

WATER 2

During your Main Phase, you can Normal Summon 1 Level 4 or lower Sea Serpent-Type monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 face-up card your opponent controls; destroy that target.

WATER 3

When this card inflicts battle damage to your opponent: You can Special Summon 1 Level 4 or lower "Atlantean" Sea Serpent-Type monster from your Deck, except "Atlantean Marksman". When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 Set card your opponent controls; destroy that target.

WATER 3

If this card is Special Summoned: You can banish cards from the top of your opponent's Deck equal to the number of WATER monsters you control. You can target 1 Level 4 or lower WATER monster you control; increase its Level by its original Level. You can banish this card from your GY; 1 WATER monster on the field gains 100 ATK for each currently banished monster, until the end of this turn. You can only use each effect of "Guitar Gurnards Duonigis" once per turn.

WATER 3

If this card is discarded to the Graveyard: You can target 1 "Mermail" monster in your Graveyard, except "Mermail Abyssgunde"; Special Summon that target. You can only use the effect of "Mermail Abyssgunde" once per turn.

WATER 7

You can discard 2 other WATER monsters to the GY; Special Summon this card from your hand. When Summoned this way: You can add 1 "Abyss-" Spell/Trap from your Deck to your hand. You can Tribute 1 other Attack Position WATER monster; this card can make a second attack during each Battle Phase this turn.

WATER 7

You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. When Summoned this way: You can add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.

WATER

2 WATER monsters You can target 1 WATER monster with 1500 or less ATK in your GY; Special Summon it to your zone this card points to, also you cannot Special Summon monsters for the rest of this turn, except WATER monsters. If this card is sent from the field to the GY: You can target 1 "Marincess" card in your GY, except "Marincess Coral Anemone"; add it to your hand. You can only use each effect of "Marincess Coral Anemone" once per turn.

WATER 6

1 Tuner + 1+ non-Tuner monsters You can discard any number of cards to the GY, then target the same number of cards your opponent controls; return those cards to the hand. You can only use this effect of "Brionac, Dragon of the Ice Barrier" once per turn.

WATER 9

1 Tuner + 1+ non-Tuner monsters Gains 500 ATK/DEF for each card in your hand. You can only use each of the following effects of "Ravenous Crocodragon Archethys" once per turn. ● If this card is Synchro Summoned: You can draw cards equal to the number of non-Tuners used for its Synchro Summon. ● (Quick Effect): You can discard 2 cards, then target 1 card on the field; destroy it.

WATER 11

1 Tuner + 2+ non-Tuner monsters When this card is Synchro Summoned: You can banish up to 3 cards your opponent controls. If this Synchro Summoned card in its owner's control is destroyed by an opponent's card: You can Special Summon 1 "Trishula, Dragon of the Ice Barrier" from your Extra Deck or GY, its ATK becomes 3300, then halve the ATK of any face-up monsters your opponent currently controls, also negate their effects. You can only use this effect of "Trishula, Zero Dragon of the Ice Barrier" once per turn.

WATER 2

When this card is Normal Summoned: You can Special Summon 1 Level 3 or lower Sea Serpent monster from your Deck.

WATER

2 Level 4 monsters While this card has a material attached that was originally WATER, all WATER monsters you control gain 500 ATK. Once per turn (Quick Effect): You can detach 1 material from this card; your opponent cannot activate any card effects in their GY this turn.

WATER

2 Level 4 WATER monsters When any player's monster declares an attack: You can detach 1 Xyz Material from this card; all monsters your opponent currently controls lose 1000 ATK until the end of this turn. When this card is destroyed by battle or card effect and sent to the Graveyard: You can target 1 other monster in your Graveyard; Special Summon it. You can only use each effect of "Number 37: Hope Woven Dragon Spider Shark" once per turn.

Spell Normal

Banish 1 WATER monster from your GY; add 1 Level 4 or lower Sea Serpent monster from your Deck to your hand. You can only activate 1 "Deep Sea Aria" per turn.

Spell Normal

Shuffle 2 WATER monsters from your hand into the Deck, then draw 3 cards.

WATER 7

You can discard 2 other WATER monsters to the GY; Special Summon this card from your hand. When Summoned this way: You can add 1 "Abyss-" Spell/Trap from your Deck to your hand. You can Tribute 1 other Attack Position WATER monster; this card can make a second attack during each Battle Phase this turn.

WATER 7

You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. When Summoned this way: You can add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.

WATER 6

1 Tuner + 1+ non-Tuner monsters You can discard any number of cards to the GY, then target the same number of cards your opponent controls; return those cards to the hand. You can only use this effect of "Brionac, Dragon of the Ice Barrier" once per turn.

WATER 11

1 Tuner + 2+ non-Tuner monsters When this card is Synchro Summoned: You can banish up to 3 cards your opponent controls. If this Synchro Summoned card in its owner's control is destroyed by an opponent's card: You can Special Summon 1 "Trishula, Dragon of the Ice Barrier" from your Extra Deck or GY, its ATK becomes 3300, then halve the ATK of any face-up monsters your opponent currently controls, also negate their effects. You can only use this effect of "Trishula, Zero Dragon of the Ice Barrier" once per turn.

WATER 2

When this card is Normal Summoned: You can Special Summon 1 Level 3 or lower Sea Serpent monster from your Deck.

WATER

2 Level 4 monsters While this card has a material attached that was originally WATER, all WATER monsters you control gain 500 ATK. Once per turn (Quick Effect): You can detach 1 material from this card; your opponent cannot activate any card effects in their GY this turn.

WATER

2 Level 4 WATER monsters When any player's monster declares an attack: You can detach 1 Xyz Material from this card; all monsters your opponent currently controls lose 1000 ATK until the end of this turn. When this card is destroyed by battle or card effect and sent to the Graveyard: You can target 1 other monster in your Graveyard; Special Summon it. You can only use each effect of "Number 37: Hope Woven Dragon Spider Shark" once per turn.