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 1

If this card is added from the Deck or GY to your hand by an effect of a WATER monster: You can reveal this card; look at your opponent's hand. If this card is Special Summoned: You can send the top card of your Deck to the GY, then target 1 Level 4 or lower WATER monster in your GY, except "Deep Sea Artisan"; Special Summon it, but negate its effects. You can only use each effect of "Deep Sea Artisan" once per turn.

WATER 2

If this card is sent to the GY to activate a WATER monster's effect: You can make your opponent banish 1 card from their hand face-up, until the End Phase. If this card is Special Summoned: You can send the top 2 cards of your Deck to the GY, then target 1 Level 4 or lower WATER monster in your GY, except "Deep Sea Sentry"; add it to your hand. You can only use each effect of "Deep Sea Sentry" once per turn.

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 4

You can Special Summon this card (from your hand) by discarding 1 WATER monster. You can only Special Summon "White Stingray" once per turn this way. If this card is Special Summoned from the GY: You can treat it as a Tuner this turn. You can only use this effect of "White Stingray" once per turn.

WATER

2 WATER monsters All WATER monsters on the field gain 500 ATK and DEF, also all FIRE monsters on the field lose 400 ATK and DEF. If this card is destroyed by battle or card effect: You can target 1 WATER monster in your GY; add it to your hand. You can only use this effect of "Mistar Boy" once per turn.

WATER

1+ Effect Monsters You can only control 1 "Worldsea Dragon Zealantis". You can only use each of the following effects of "Worldsea Dragon Zealantis" once per turn. During your Main Phase: You can banish all monsters on the field, then Special Summon as many monsters as possible that were banished by this effect, to their owners' fields, face-up, or in face-down Defense Position. During the Battle Phase (Quick Effect): You can destroy cards on the field up to the number of co-linked monsters on the field.

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 7

1 Tuner + 1+ non-Tuner WATER monsters Each time another monster(s) you control is destroyed by your opponent's attack or card effect: Inflict 600 damage to your opponent. During the Battle Phase, when your opponent activates a card or effect while you control another monster (Quick Effect): You can negate that effect, and if you do, destroy that card. You can only use this effect of "Glacial Beast Iceberg Narwhal" 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 10

1 Tuner + 1+ non-Tuner monsters For each banished card, this card gains 100 ATK/DEF and monsters your opponent controls lose 100 ATK/DEF. If this card would be destroyed by card effect, you can banish 1 card from your GY instead. If a card(s) is banished (except during the Damage Step): You can banish 1 card each from both your opponent's field and GY. You can only use this effect of "Swordsoul Supreme Sovereign - Chengying" once per turn.

WATER 8

1 WATER Tuner + 1+ non-Tuner WATER monsters When this card is Synchro Summoned: You can destroy all your opponent's Attack Position monsters. This card can make up to 2 attacks on monsters during each Battle Phase. If this card attacks a Defense Position monster, inflict piercing battle damage. If this card you control is destroyed by an opponent's card (by battle or card effect) and sent to your GY: You can banish 1 other WATER monster from your GY; Special Summon this card, and if you do, it is treated as a Tuner.

WATER 7

1 Tuner + 1+ non-Tuner monsters Your opponent cannot target a Synchro Monster that used this card as material with monster effects. You can only use each of the following effects of "Deep Sea Prima Donna" once per turn. ● You can target 1 of your opponent's banished cards; add to your hand, or Special Summon, 1 Level 4 or lower WATER monster from your Deck, and if you do, add that target to their hand. ● If this card is sent to the GY: You can target 1 banished card; shuffle it into the Deck.

WATER 5

"Deep Sea Diva" + 1+ non-Tuner monsters Once per turn (Quick Effect): You can discard 1 Level 4 or lower WATER monster; this card gains 800 ATK until the end of this turn. If this Synchro Summoned card is sent to your GY: You can target 1 Level 5 or higher WATER monster in your GY, except "Deep Sea Repetiteur"; Special Summon it in Defense Position, also you cannot Special Summon monsters for the rest of this turn, except WATER monsters. You can only use this effect of "Deep Sea Repetiteur" once per turn.

WATER 3

1 Tuner + 1+ non-Tuner monsters If this Synchro Summoned monster would be used as a Synchro Material, 1 monster in your hand can be used as 1 of the other materials. Unaffected by other monsters' effects.

WATER 2

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

WATER 3

You can discard this card and 1 WATER monster; look at your opponent's hand and banish 1 card from their hand face-up, until the End Phase. If this card is Special Summoned: You can send the top 3 cards of your Deck to the GY, then target 1 Level 4 or lower WATER monster in your GY, except "Deep Sea Minstrel"; place it on the top or bottom of the Deck. You can only use each effect of "Deep Sea Minstrel" 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

Destroy all Spell and Trap Cards your opponent controls.

Spell Field

(This card's name is always treated as "Umi".) When this card is activated: You can place 1 WATER monster from your Deck on top of your Deck. Once per turn: You can target 1 WATER monster you control; increase its Level by 1 or 2 until the end of this turn (even if this card leaves the field). Once per turn, during your Main Phase, if you Special Summon a WATER Synchro Monster: You can look at your opponent's hand, and if you do, banish 1 card from it face-up until the End Phase.

Spell Normal

Target 1 monster in either GY; Special Summon it.

Spell Normal

Target 1 Level 3 or lower Fish, Sea Serpent, or Aqua monster in your GY; Special Summon it in face-up Defense Position.

Spell Continuous

Once per turn: You can Special Summon 1 Level 4 or lower WATER monster from your hand. You must control no monsters to activate and to resolve this effect.

Trap Normal

Target 1 "Armed Dragon" monster you control; it gains 1000 ATK for each "Armed Dragon" monster in your GY with an equal or lower Level than it and with different names from each other, also for the rest of this turn, your opponent takes no battle damage from its attacks. You can banish this card from your GY, then target 1 "Armed Dragon" Spell in your GY; add it to your hand. You can only use 1 "Armed Dragon Thunderbolt" effect per turn, and only once that turn.

Trap Continuous

When this card is activated: You can activate 1 "Umi" from your hand or GY. While "Umi" is on the field, this face-up card gains these effects. ● Once per turn: You can banish 1 WATER monster you control until the End Phase; this turn, face-up Spells/Traps you control cannot be destroyed by your opponent's card effects (even if this card leaves the field). ● At the start of the Damage Step, if your WATER monster whose original Level is 5 or higher battles an opponent's monster: Destroy that opponent's monster.