Umi Deck Breakdown

WATER 3

If this card is sent to the GY to activate a monster effect: You can add this card to your hand. If a monster(s) is sent to your GY, except by battle, while this card is in your GY (except during the Damage Step): You can discard 1 card to the GY; Special Summon this card. You can only use 1 "Butterfly Fish" effect per turn, and only once that turn. You cannot Special Summon from the Extra Deck, except WATER monsters, the turn you activate either of this card's effects.

WATER 8

You can Special Summon this card (from your hand) to your opponent's field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. When your opponent activates a card or effect, except "Gameciel, the Sea Turtle Kaiju" (Quick Effect): You can remove 2 Kaiju Counters from anywhere on the field; negate the activation, and if you do, banish that card.

WATER 3

If this card in your Monster Zone is destroyed by battle or Spell effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.

WATER 3

If this card in your Monster Zone is destroyed by battle or Trap effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.

WATER 3

If this card in your Monster Zone is destroyed by battle or monster effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.

WATER 4

If you control a WATER monster: You can Special Summon this card from your hand. You cannot Special Summon monsters, except WATER monsters, the turn you activate this effect. You can banish this card from your GY, then target up to 3 WATER monsters in your GY; shuffle them into the Deck. You can only use each effect of "Silent Sea Nettle" once per turn.

WATER 4

You can target 1 WATER monster in your GY; apply 1 of these effects, also you cannot Special Summon monsters for the rest of this turn, except WATER monsters. ● (Only if the target has a Level) until the End Phase, this card's Level, also its name, become the same as that monster's. ● (Only if "Umi" is on the field), Special Summon that monster in Defense Position. You can banish this card from your GY, then target 1 "Umi" in your GY; add it to your hand. You can only use each effect of "Yorishiro of the Aqua" 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

2+ monsters, including a Fish, Sea Serpent, or Aqua monster Your opponent cannot target WATER monsters this card points to with card effects. You can only use each of the following effects of "Mermail King - Neptabyss" once per turn. If a WATER monster(s) is sent to the GY to activate a card or effect (except during the Damage Step): You can take 1 "Abyss-" Equip Spell from your Deck or GY and either add it to your hand or equip it to this card. If this card in its owner's possession is destroyed by an opponent's card: You can add 1 "Atlantean" or "Mermail" monster from your Deck to your hand.

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 3

A gourmet food renowned by the Dark World upper crust. It has sensational flavor.

WATER 8

1 Tuner + 1+ non-Tuner monsters During your Main Phase: You can excavate the top 5 cards of your Deck, and if you do, you can return cards your opponent controls to the hand, up to the number of excavated Rock monsters, also place the excavated cards on the bottom of your Deck in any order. When your opponent activates a Spell/Trap Card or effect, while a WATER monster is in your GY (Quick Effect): You can negate the activation, and if you do, destroy it. You can only use each effect of "Adamancipator Risen - Dragite" once per turn.

WATER 8

1 Aqua-Type Tuner + 1 or more non-Tuner monsters When this card is Synchro Summoned: You can target cards your opponent controls, up to the number of WATER monsters used for the Synchro Summon of this card; destroy them. If this card is destroyed by battle or card effect and sent to the Graveyard: You can target 1 other WATER monster in your Graveyard; Special Summon it, but its effects are negated. You can only use each effect of "Graydle Dragon" once per turn.

WATER 10

1 WATER Tuner + 1+ non-Tuner monsters (Quick Effect): You can activate this effect; face-up monsters you control cannot be destroyed, or banished, by your opponent's card effects this turn. Then, if you activated this effect in response to your opponent's card or effect activation, and your opponent has a card(s) with that name on their field and/or GY, you can banish those cards. If a card(s) is banished by your opponent's card effect, while this card is in your GY (except during the Damage Step): You can Special Summon this card. You can only use each effect of "Icejade Gymir Aegirine" once per turn.

WATER 9

1 Tuner + 1+ non-Tuner monsters If this card is Special Summoned: You can target face-up cards your opponent controls, up to the number of Tuners in your GY; negate their effects until the end of this turn. If this Synchro Summoned card is destroyed by card effect and sent to the GY: You can target 1 Tuner in your GY; add it to your hand.

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 12

1 Tuner + 1+ non-Tuner monsters Cannot be destroyed by battle. Dinosaur monsters you control that were Special Summoned from the GY cannot be destroyed by your opponent's card effects, also your opponent cannot target them with card effects. If this card is destroyed: You can shuffle 1 Normal Monster from your GY into the Deck, then you can Special Summon this card. You can only use this effect of "Transcendosaurus Glaciasaurus" once per turn.

WATER 9

1 Tuner + 2+ non-Tuner monsters When this card is Synchro Summoned: You can banish up to 1 card each from your opponent's hand, field, and GY. (The card in the hand is chosen at random.)

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 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 4

You can reveal this card and 1 WATER monster in your hand; Special Summon 1 of them and discard the other. You can only use this effect of "Fishborg Harpooner" once per turn. If this card is sent to the GY as material for a WATER Synchro Monster: You can negate the effects of 1 Effect Monster your opponent controls, until the end of this turn.

WATER 5

If this card is in your hand or Graveyard: You can target 2 "Graydle" cards you control; destroy them, and if you do, Special Summon this card. You can only use this effect of "Graydle Slime" once per turn. When Summoned this way: You can target 1 "Graydle" monster in your Graveyard; Special Summon that target in Defense Position.

WATER 2

When this card is Normal Summoned: You can target 1 "Graydle" monster in your Graveyard; for the rest of this turn, you cannot Special Summon other monsters, except WATER monsters, also Special Summon that monster, then you can Special Summon from your hand, 1 Aqua-Type monster with the same Level as the monster Special Summoned by this card's effect. When this card is destroyed by battle and sent to the Graveyard: You can Special Summon 1 "Graydle" monster from your Deck.

Spell Continuous

If a face-up monster(s) you control is destroyed by battle or card effect: You can gain LP equal to their combined original ATK. If a monster(s) is Special Summoned face-up from your GY (except during the Damage Step): You can target 1 of them; it gains 1000 ATK. If a Spell/Trap(s) is discarded from your hand to your GY (except during the Damage Step): You can target 1 of them; add it to your hand. You can only use each effect of "Ebon Sun" once per turn.

Spell Normal

Activate 1 of these effects; ● Discard 1 WATER monster to the GY, then target 1 face-up monster your opponent controls; destroy it. ● Destroy 1 FIRE monster in your hand, then you can draw 1 card. If only your opponent controls a monster: You can banish this card from your GY, then target 1 Level 7 or 8 WATER or FIRE monster in your GY; Special Summon it. You can only use each effect of "Firestorms Over Atlantis" once per turn.

Spell Quick

Send any number of other cards from your hand and/or field to the GY; choose that many Effect Monsters your opponent controls, and until the end of this turn, their ATK is halved, also their effects are negated. In response to this card's activation, your opponent cannot activate cards, or the effects of cards, with the same original type (Monster/Spell/Trap) as the cards sent to the GY to activate this card. You can only activate 1 "Forbidden Droplet" per turn.

Spell Continuous

You can target 1 other "Graydle" card you control and 1 card your opponent controls; destroy them. During your End Phase: You can add 1 "Graydle" card from your Deck to your hand. You can only use 1 "Graydle Impact" effect per turn, and only once that turn.

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 Continuous

You can target 1 WATER monster with 1000 or less ATK in your GY; Special Summon it, but destroy it during the End Phase. You can only use this effect of "Ocean of Regeneration" once per turn.

Trap Counter

When a Spell/Trap Card, or monster effect, that targets exactly 1 "Graydle" monster you control (and no other cards) is activated: Activate 1 of these effects; ● The activated effect becomes "Destroy that monster". ● Negate the activation, and if you do, destroy that card.

Trap Continuous

When an opponent's monster declares a direct attack: You can Special Summon 1 "Graydle" monster from your Deck in Attack Position, if you control no monsters. When a "Graydle" monster you control declares a direct attack: You can target 1 monster in your opponent's Graveyard; Special Summon that target to their side of the field, if they control no monsters. You can only use each effect of "Graydle Parasite" once per turn.

Trap Normal

Target 1 face-up monster you control; equip this card to it. It gains 500 ATK. During your Main Phase: You can send this card equipped to a monster by this effect to the Graveyard; destroy the monster this card was equipped to, and if you do, Special Summon 2 "Graydle" monsters with different names from your Deck, but destroy them during the End Phase. You can only use this effect of "Graydle Split" once per turn.

Trap Normal

When an attack is declared involving your opponent's monster: Change that opponent's monster's ATK to 0, negate its effects, also it cannot change its battle position. You can banish this card from your GY; send 1 Level 5 or higher WATER monster from your Deck to the GY, then, you can add 1 WATER monster from your GY to your hand, also, until the end of your next turn after this effect resolves, you cannot Special Summon monsters, except WATER monsters. You can only use this effect of "Ice Barrier" once per 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.