Deep Sea Deck #739758 — Yu-Gi-Oh! OCG
Created by: YGO Mod (20517634)
Created On: 08/07/2026
Main: 47 Extra: 15



WATER
4ATK:
1800
DEF:
0
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
4ATK:
1400
DEF:
1700
You can send 1 "Umi" from your hand, Deck, or face-up field to the GY; Special Summon 1 WATER monster from your hand. When your opponent activates a monster effect, or Spell Card or effect, while "Umi" is on the field (Quick Effect): You can negate that effect, then, you can make this card gain 600 ATK/DEF. You can only use each effect of "Electric Jellyfish" once per turn.



WATER
4ATK:
1400
DEF:
1800
This card's name becomes "Umi" while in the Monster Zone. You can only use each of the following effects of "Fiendish Vortex of Atlantis" once per turn. If this card is Normal or Special Summoned: You can send 1 card that mentions "Atlantis, City of the Sea Dragon" from your Deck to the GY, except "Fiendish Vortex of Atlantis". If this card is sent to the GY and you control "Umi": You can Special Summon 1 WATER monster from your hand.



WATER
7ATK:
2600
DEF:
1500
This card's name becomes "Umi" while in the Monster Zone. You can only use each of the following effects of "Leviathan of Atlantis - Daedalus" once per turn. If you control "Atlantis, City of the Sea Dragon" or "Umi": You can Special Summon this card from your hand. You can send up to 3 face-up "Umi" you control to the GY; add that many cards that mention "Atlantis, City of the Sea Dragon" from your Deck to your hand, except Level 7 monsters, then you can send 1 card on the field to the GY.



WATER
3ATK:
0
DEF:
1900
(This card is always treated as an "Atlantean" card.) You can discard 1 card to the GY; WATER monsters you currently control become Level 7 until the end of this turn. If this card is sent to the GY to activate a WATER monster's effect: Special Summon 1 Level 4 or lower "Atlantean" or "Mermail" monster from your Deck, except "Mermail Shadow Squad", also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. You can only use each effect of "Mermail Shadow Squad" once per turn.



WATER
4ATK:
1500
DEF:
1200
This card's name becomes "Umi" while in the Monster Zone. You can only use each of the following effects of "Monstrous Arms of Atlantis" once per turn. If this card is Normal or Special Summoned: You can target 1 monster in your GY that mentions "Atlantis, City of the Sea Dragon"; Special Summon it in Defense Position. When your opponent activates a monster effect (Quick Effect): You can banish this card from your field or GY and send 1 face-up "Umi" you control to the GY; negate that effect.



WATER
8ATK:
2800
DEF:
2200
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having exactly 5 WATER monsters in your GY. If this card is Special Summoned: Discard 2 random cards from your opponent's hand (or their entire hand, if less than 2). You can only use this effect of "Moulinglacia the Elemental Lord" once per turn. If this face-up card leaves the field, skip the Battle Phase of your next turn.



WATER
4ATK:
100
DEF:
600
If you control no cards (Quick Effect): You can discard this card; apply these effects this turn. ● Each time your opponent Normal or Special Summons a monster(s) from the hand, immediately draw 1 card. ● Once, during this End Phase, if the number of cards in your hand is more than the number of cards your opponent controls +6, you must randomly shuffle cards from your hand into the Deck so the number in your hand equals the number your opponent controls +6. You can only activate 1 other "Mulcharmy" monster effect, the turn you activate this effect.



WATER
1ATK:
800
DEF:
0
You can send 1 "Atlantean" monster from your Deck to the Graveyard, except "Neptabyss, the Atlantean Prince"; add 1 "Atlantean" card from your Deck to your hand, except "Neptabyss, the Atlantean Prince". If this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 "Atlantean" monster in your Graveyard, except "Neptabyss, the Atlantean Prince"; Special Summon it. You can only use each effect of "Neptabyss, the Atlantean Prince" once per turn.



WATER
5ATK:
2000
DEF:
1700
While "Umi" is on the field, each player can only control 1 face-up non-WATER monster. (If a player controls 2 or more, they must send some to the GY so they only control 1.) During your Main Phase: You can add from your Deck to your hand 1 "Umi", 1 "Kairyu-Shin" Spell/Trap, or 1 "Sea Stealth" Spell/Trap. You can only use this effect of "Ocean Dragon Lord - Kairyu-Shin" once per turn.



WATER
7ATK:
2800
DEF:
1600
While you control a monster, except "Poseidra, the Storming Atlantean", your opponent's monsters cannot target this card for attacks. You can only use each of the following effects of "Poseidra, the Storming Atlantean" once per turn. You can send 1 other WATER monster from your hand or face-up field to the GY; Special Summon this card from your hand. 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.



FIRE
3ATK:
0
DEF:
1800
When a card or effect is activated that includes any of these effects (Quick Effect): You can discard this card; negate that effect. ● Add a card from the Deck to the hand. ● Special Summon from the Deck. ● Send a card from the Deck to the GY. You can only use this effect of "Ash Blossom & Joyous Spring" once per turn.



WATER
3ATK:
1200
DEF:
1500
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
EquipSpecial Summon 1 "Atlantean" or "Mermail" monster from your hand or GY, and if you do, equip it with this card. If the equipped monster would be destroyed by battle or card effect, you can send this card to the GY instead. You can banish this card from your GY, then target up to 3 of your Fish, Sea Serpent, and/or Aqua monsters that are banished or in your GY; shuffle them into the Deck. You can only use this effect of "Abyss-sting Triaina" once per turn. You can only activate 1 "Abyss-sting Triaina" per turn.



Spell
ContinuousThis card's name becomes "Umi" while in the Spell & Trap Zone. You can only use each of the following effects of "Advent of Atlantis" once per turn. During your Main Phase: You can place 1 "Atlantis, City of the Sea Dragon" or "Umi" from your Deck face-up in your Field Zone. If this card is sent to the GY: You can add 1 Level 7 Sea Serpent monster from your Deck to your hand.



Spell
NormalAdd 1 monster that mentions "Atlantis, City of the Sea Dragon" from your Deck to your hand, then if you control "Atlantis, City of the Sea Dragon", you can negate the effects of 1 Effect Monster your opponent controls until the end of this turn. If you control "Umi": You can banish this card from your GY; all WATER monsters you currently control gain 500 ATK/DEF. You can only use each effect of "Atlantis Call" once per turn.



Spell
FieldWhile a monster that mentions "Atlantis, City of the Sea Dragon" is on the field, reduce the Levels of all monsters in both players' hands and fields by 1. If you Link Summon a "Daedalus" monster, you can reduce the material requirement listed on it by 1 and Link Summon it with 1 less material. If this card is in your GY and you control "Umi": You can place this card face-up on your field. You can only use this effect of "Atlantis, City of the Sea Dragon" once per turn.



Trap
NormalIf your opponent controls a card, you can activate this card from your hand. When a card or effect is activated that includes an effect that Special Summons a monster(s): Negate that effect, then if you have a Trap in your GY, destroy that card. If you activated this card from your hand, you cannot activate the effects of LIGHT, EARTH, and WIND monsters for the rest of this Duel. You can only activate 1 "Dominus Impulse" per turn.



Trap
NormalTarget 1 face-up monster your opponent controls; negate its effects (until the end of this turn), then, if this card was Set before activation and is on the field at resolution, for the rest of this turn all other Spell/Trap effects in this column are negated. If you control no cards, you can activate this card from your hand.



Trap
NormalSend 1 face-up "Umi" you control to the GY; Special Summon up to 2 monsters with different names from your hand and/or Deck, that mention "Umi" or are WATER Normal Monsters, in Defense Position, then if your opponent controls a monster, you can Special Summon any number of Level 6 or lower WATER Normal Monsters from your hand and/or Deck. Until the end of your next turn after this card resolves, you cannot Special Summon monsters, except WATER monsters. You can only activate 1 "Kairyu-Shin's Dark Reef" per turn.



Trap
NormalTarget 1 Fish, Sea Serpent, or Aqua monster you control and 2 cards your opponent controls; destroy them. You can banish this card from your GY, then target 1 face-up monster on the field; if it is a WATER monster, the next time it would be destroyed by card effect this turn, it is not destroyed. If it is not, it becomes WATER. You can only use each effect of "Virtue Stream" once per turn.



WATERATK:
2900
LINK-4
Link Arrow:
Top
Bottom-Left
Bottom
Bottom-Right
4 monsters If this card is Link Summoned: You can Special Summon up to 3 monsters that mention "Atlantis, City of the Sea Dragon" from your GY to your zones this card points to, also you cannot Special Summon for the rest of this turn. This card's name becomes "Umi" while in the Monster Zone. Once per turn (Quick Effect): You can send 1 face-up "Umi" you control to the GY; send all cards on the field to the GY, except "Umi".



WATERATK:
2600
LINK-3
Link Arrow:
Bottom-Left
Bottom
Bottom-Right
3 WATER monsters This card's name becomes "Umi" while in the Monster Zone. You can only use each of the following effects of "Levia-Dragoon - Daedalus" once per turn. If this card is Link Summoned: You can Special Summon 1 monster that mentions "Atlantis, City of the Sea Dragon" from your Deck. During the Main Phase (Quick Effect): You can send 1 face-up "Umi" you control to the GY; discard your opponent's entire hand, and if you do, they draw the same number of cards. Neither player can activate cards or effects in response to this effect's activation.



WATERATK:
2000
LINK-2
Link Arrow:
Left
Bottom
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.



WATERATK:
3000
LINK-3
Link Arrow:
Bottom-Left
Bottom
Bottom-Right
2+ monsters, including a Fusion, Synchro, Xyz, or Link Monster Gains these effects based on the number of monsters it points to. ● 1+: Once per turn: You can negate the effects of all face-up monsters your opponent currently controls, also until the end of this turn, their ATK's become halved. ● 2+: Unaffected by your opponent's activated effects. ● 3: Once per opponent's turn (Quick Effect): You can banish this card, also banish all cards your opponent controls.



WATERATK:
1600
LINK-2
Link Arrow:
Bottom-Left
Bottom-Right
2 Fish, Sea Serpent, and/or Aqua monsters Monsters this card points to gain 500 ATK/DEF. You can only use each of the following effects of "Mermail Abyssalacia" once per turn. ● During your opponent's turn (Quick Effect): You can send 1 card from your hand to the GY; add 1 "Mermail" monster from your Deck to your hand. ● If this card in its owner's possession is destroyed by an opponent's attack or card effect: You can send 1 WATER monster from your Deck to the GY, then target 1 WATER monster in your GY; Special Summon it in Defense Position.



WATERATK:
2300
LINK-3
Link Arrow:
Bottom-Left
Bottom
Bottom-Right
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
10ATK:
3300
DEF:
2700
1 WATER Tuner + 1+ non-Tuner monsters Once per Chain, if your opponent Special Summons a monster(s) (except during the Damage Step): You can Special Summon 1 "Ice Barrier" monster from your hand, Deck, Extra Deck, or GY, then you can change 1 Attack Position monster your opponent controls to Defense Position. You can only use this effect of "Lancea, Ancestral Dragon of the Ice Mountain" twice per turn. If this face-up Synchro Summoned card in its owner's control leaves the field because of an opponent's card: You can Special Summon 1 "Ice Barrier" Synchro Monster from your Extra Deck. (This is treated as a Synchro Summon.)



WATER
6ATK:
2400
DEF:
500
1 Tuner + 1+ non-Tuner monsters Once per turn: You can discard 1 card, then target 1 card your opponent controls; destroy it. If this Synchro Summoned card is sent from the field to the GY: You can draw 1 card. You can only use this effect of "Coral Dragon" once per turn.



WATER
7ATK:
1500
DEF:
2700
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
ATK:
2000
DEF:
0
2 Level 3 monsters If this card is Special Summoned: You can add 1 "Virtue Stream" from your Deck to your hand. You can activate 1 of these effects; ● Detach 1 material from a monster you control, then add 1 Fish, Sea Serpent, or Aqua monster from your GY to your hand, except "LeVirtue Dragon". ● Target 2 Xyz Monsters on the field; attach 1 material from 1 of those monsters to the other. You can only use each effect of "LeVirtue Dragon" once per turn.



WATER
ATK:
2800
DEF:
1600
2 Level 7 WATER monsters While this face-up card has Xyz Material, Level 5 or higher monsters cannot attack. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up monsters your opponent currently controls that have less ATK than this card, until the end of the turn.



WATER
ATK:
3000
DEF:
1800
3 Level 7 monsters Once per turn, you can also Xyz Summon "Poseidra Abyss, the Atlantean Dragon Lord" by using 1 "Atlantean" or "Mermail" Xyz Monster you control. (Transfer its materials to this card.) Once per turn: You can detach 2 materials from this card, then send 1 WATER monster from your hand or Deck to the GY; return up to 3 cards your opponent controls to the hand. If this Xyz Summoned card is sent to the GY: You can discard 1 card to the GY; Special Summon 3 Level 3 or lower Fish, Sea Serpent, and/or Aqua monsters from your hand and/or GY.
























































