Ameba
ATK:
300
DEF:
350
When the control of this face-up card on the field shifts to your opponent, inflict 2000 points of damage to your opponent's Life Points. This effect can only be used once as long as this card remains face-up on the field.
Aqua Spirit
ATK:
1600
DEF:
1200
This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing from play 1 WATER monster in your Graveyard. During each of your opponent's Standby Phases, you can change the battle position of 1 of your opponent's face-up Monster Cards. Once changed, the monster must remain in this position for the rest of the turn.
Big Whale
ATK:
1000
DEF:
3000
When this card is Tribute Summoned: You can Tribute this card; Special Summon 3 Level 3 WATER monsters from your Deck. Their effects are negated.
Brinegir
ATK:
1000
DEF:
2600
If this card is Normal or Special Summoned: You can target 1 WATER monster in your GY; this card gains ATK equal to that monster's ATK until the end of this turn. If this card is sent to the GY: You can target 1 WATER monster you control; it gains 1000 ATK until the end of this turn. You can only use each effect of "Brinegir" once per turn.
Cloudian - Poison Cloud
ATK:
0
DEF:
1000
When this card is destroyed by battle and sent to the Graveyard, if it was face-up at the start of the Damage Step: Destroy the monster that destroyed it, and if you do, inflict 800 damage to your opponent.
Dododo Driver
ATK:
1800
DEF:
200
Up to twice per turn, if this card was Special Summoned by the effect of a "Dododo" monster this turn: You can target 1 "Dododo" monster you control, then activate 1 of these effects; ● Increase its Level by 1. ● Reduce its Level by 1.
Double Fin Shark
ATK:
1000
DEF:
1200
When this card is Normal Summoned: You can target 1 Level 3 or 4 WATER Fish-Type monster in your Graveyard; Special Summon that target in Defense Position, but it has its effects negated. You cannot Special Summon any monsters during the turn you activate this effect, except WATER monsters.
Double Shark
ATK:
1200
DEF:
1600
When this card is Normal Summoned: You can reduce the Levels of all Level 4 Fish-Type monsters you currently control by 1. This card can make a second attack during each Battle Phase.
Drill Barnacle
ATK:
300
DEF:
0
This card can attack your opponent directly. Each time this card inflicts Battle Damage to your opponent by a direct attack: This card gains 1000 ATK.
Elemental HERO Stratos
ATK:
1800
DEF:
300
When this card is Normal or Special Summoned: You can activate 1 of these effects. ● Destroy Spells/Traps on the field, up to the number of "HERO" monsters you control, except this card. ● Add 1 "HERO" monster from your Deck to your hand.
Evilswarm Castor
ATK:
1750
DEF:
550
During the turn this card was Normal Summoned, you can Normal Summon 1 "lswarm" monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.)
Evilswarm Kerykeion
ATK:
1600
DEF:
1550
You can only use each effect of "Evilswarm Kerykeion" once per turn. While this card is in the Graveyard, if it was sent there this turn, you can Normal Summon 1 "lswarm" monster for 1 less Tribute. You can banish 1 "lswarm" monster from your Graveyard, then target 1 "lswarm" monster in your Graveyard; add that target to your hand, also, this card gains the following effect. ● This turn: You can activate this effect; Normal Summon 1 "lswarm" monster.
Evilswarm Ketos
ATK:
1750
DEF:
1050
You can Tribute this card, then target 1 Spell/Trap Card your opponent controls; destroy that target.
Friller Rabca
ATK:
700
DEF:
1500
When a Fish, Sea Serpent, or Aqua-Type monster you control is targeted for an attack: You can banish this card from your Graveyard, then target the attacking monster; negate the attack, and if you do, that target loses 500 ATK until the end of the next turn. You can only use this effect of "Friller Rabca" once per turn.
Gishki Abyss
ATK:
800
DEF:
500
When this card is Summoned: You can add 1 "Gishki" monster with 1000 or less DEF from your Deck to your hand, except "Gishki Abyss".
Gishki Mollusk
ATK:
1700
DEF:
900
When this card is sent to the Graveyard by a card effect: Look at the top 3 cards of your Deck, then return them all to the top or to the bottom of the Deck, in any order.
Gishki Reliever
ATK:
500
DEF:
800
When this card is Normal or Flip Summoned: You can target 1 other monster you control; return that target to the hand. You must control another face-up "Gishki" monster to activate and to resolve this effect.
Gishki Vanity
ATK:
1000
DEF:
800
During your Main Phase: You can discard this card; this turn, your opponent cannot activate Spells, Traps, Spell/Trap effects, or Monster Card effects when a "Gishki" monster is Ritual Summoned, or when a "Gishki" Ritual Spell Card is activated.
Gishki Vision
ATK:
700
DEF:
500
If you Ritual Summon exactly 1 WATER Ritual Monster with a card effect that requires use of monsters, this card can be used as the entire requirement. You can discard this card; add 1 "Gishki" Ritual Monster from your Deck to your hand.
Gogogo Ghost
ATK:
1900
DEF:
0
If this card is Special Summoned: You can target 1 "Gogogo Golem" in your Graveyard; Special Summon that target in face-up Defense Position, then change this card to Defense Position. You can only use the effect of "Gogogo Ghost" once per turn.
Gogogo Giant
ATK:
2000
DEF:
0
When this card is Normal Summoned: You can target 1 "Gogogo" monster in your GY; Special Summon that target in Defense Position, then change this card to Defense Position. If this card attacks, it is changed to Defense Position at the end of the Battle Phase.
Gogogo Gigas
ATK:
0
DEF:
2200
While this card is in your Graveyard, if you Special Summon a "Gogogo" monster(s) (except during the Damage Step): You can Special Summon this card from your Graveyard in face-up Defense Position. You cannot conduct your Battle Phase the turn you activate this effect. You can only use the effect of "Gogogo Gigas" once per turn.
Gogogo Golem - Golden Form
ATK:
-1
DEF:
1500
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 1 "Gogogo" monster, and cannot be Special Summoned by other ways. This card's ATK becomes double the original ATK of the Tributed monster. Any battle damage your opponent takes from attacks involving this card is halved. Once per turn, during either player's turn, if a monster effect is activated on your opponent's side of the field: This card loses exactly 1500 ATK, and if it does, negate that effect.
Gorgonic Cerberus
ATK:
1300
DEF:
300
When this card is Normal Summoned: You can make all Rock-Type monsters you control become Level 3.
Gorgonic Gargoyle
ATK:
1000
DEF:
800
When you Normal Summon a Rock-Type monster: You can Special Summon this card from your hand.
Gorgonic Ghoul
ATK:
100
DEF:
100
If you control a "Gorgonic Ghoul": You can pay 300 LP; Special Summon this card from your hand. You can use the effect of "Gorgonic Ghoul" up to twice per turn.
Hyper-Ancient Shark Megalodon
ATK:
2900
DEF:
1300
When this card inflicts battle damage to your opponent: You can target 1 monster your opponent controls; destroy that target.
Jawsman
ATK:
2600
DEF:
1600
Cannot be Special Summoned. If you Tribute Summon this card, all Tributes must be WATER. This card gains 300 ATK for each face-up WATER monster you control, except this card.
Kaiser Sea Snake
ATK:
2500
DEF:
1000
If your opponent controls a monster and you control no monsters, you can Special Summon this card (from your hand). You can only Special Summon "Kaiser Sea Snake" once per turn this way. When Summoned this way: You can Special Summon 1 Level 8 Sea Serpent monster from your hand or GY, but its ATK/DEF become 0. If this card is Special Summoned, its Level becomes 4 and original ATK becomes 0.
Masked Chopper
ATK:
100
DEF:
100
If this card destroys an opponent's monster by battle, inflict 2000 damage to your opponent.
Mermaid Shark
ATK:
100
DEF:
300
When this card is Normal Summoned: You can add 1 Level 3, 4 or 5 Fish-Type monster from your Deck to your hand.
Mermail Abyssdine
ATK:
1000
DEF:
200
When this card is added from your Deck or Graveyard to your hand by a card effect: You can Special Summon this card from your hand. You must control a "Mermail" monster to activate and to resolve this effect. When this card is Special Summoned by the effect of a "Mermail" monster: You can target 1 Level 3 or lower "Mermail" monster in your Graveyard; Special Summon that target. You can only use 1 "Mermail Abyssdine" effect per turn, and only once that turn.
Mermail Abysshilde
ATK:
1300
DEF:
400
If this card is sent to the Graveyard: You can Special Summon 1 "Mermail" monster from your hand, except "Mermail Abysshilde". You can only use the effect of "Mermail Abysshilde" once per turn.
Mermail Abysslung
ATK:
1200
DEF:
1800
Your opponent cannot target face-up WATER monsters for attacks, except this one. All WATER monsters you control gain 300 ATK.
Mermail Abyssocea
ATK:
1100
DEF:
1900
You can target 1 "Mermail" monster you control; Special Summon any number of Level 4 or lower "Mermail" monsters from your Deck whose combined Levels are less than or equal to the Level of that monster, then send that monster to the Graveyard. You can only use the effect of "Mermail Abyssocea" once per turn.
Overlay Eater
ATK:
300
DEF:
800
You can banish this card from your Graveyard; take 1 Xyz Material from a monster your opponent controls and attach it to an Xyz Monster you control as Xyz Material.
Overlay Owl
ATK:
800
DEF:
1600
Once per turn: You can pay 600 Life Points; detach 1 Xyz Material from a monster on the field.
Saber Shark
ATK:
1600
DEF:
1200
Cannot be used as a Synchro Material. Up to twice per turn: You can target 1 Fish-Type monster on the field, then activate 1 of these effects. ● Increase its Level by 1. ● Reduce its Level by 1. You cannot Special Summon any monsters during the turn you activate this effect, except WATER monsters.
Sharkraken
ATK:
2400
DEF:
2100
You can Special Summon this card (from your hand) by Tributing 1 WATER monster.
Shocktopus
ATK:
1600
DEF:
800
When this card is destroyed by battle with an opponent's monster and sent to the Graveyard: You can equip this card to that opponent's monster. That monster's ATK becomes 0, also it cannot change its battle position.
Silent Angler
ATK:
800
DEF:
1400
If you control a WATER monster, you can Special Summon this card (from your hand), but you cannot Special Summon monsters from your hand for the rest of this turn.
Skull Kraken
ATK:
600
DEF:
1600
When this card is Normal Summoned: You can target 1 face-up Spell Card your opponent controls; destroy that target. Once per turn: You can change the battle position of this card.
Spear Shark
ATK:
1600
DEF:
1400
When this card is Normal Summoned: You can increase the Levels of all Level 3 Fish-Type monsters you currently control by 1. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.
Starfish
ATK:
300
DEF:
300
Once per turn: You can increase the Levels of all "Starfish" you currently control by 1.
Steelswarm Cell
ATK:
0
DEF:
0
If you control no monsters, you can Special Summon this card (from your hand). While this card is face-up on the field, it cannot be Tributed, except for the Tribute Summon of a "Steelswarm" monster, and cannot be used as a Synchro Material Monster.
Steelswarm Sting
ATK:
1850
DEF:
0
When this card you control is sent to your Graveyard: Target 1 face-up Ritual, Fusion or Synchro Monster on the field; destroy that target.
Tin Goldfish
ATK:
800
DEF:
2000
When this card is Normal Summoned: You can Special Summon 1 Level 4 monster from your hand.
Tripod Fish
ATK:
300
DEF:
1300
When this card is Special Summoned from the Graveyard: You can target 1 face-up Fish, Sea Serpent, or Aqua-Type monster on the field; increase its Level by 1.
Xyz Slidolphin
ATK:
1200
DEF:
1800
If an Xyz Monster is Special Summoned to your field (except during the Damage Step): You can Special Summon this card from your hand. If an Xyz Monster(s) is Special Summoned to your field while this card is in your GY, except the turn this card was sent to your GY (and except during the Damage Step): You can target 1 of those Xyz Monsters; attach this card to it as material. You can only use each effect of "Xyz Slidolphin" once per turn.
Evilswarm Azzathoth
ATK:
750
DEF:
1950
FLIP: Target 1 Special Summoned monster on the field; shuffle that target into the Deck.
Princess of Tsurugi
ATK:
900
DEF:
700
FLIP: Inflict 500 damage to your opponent for each Spell and Trap Card on your opponent's side of the field.
Aqua Dragon
ATK:
2250
DEF:
1900
"Fairy Dragon" + "Amazon of the Seas" + "Zone Eater"
Vision HERO Adoration
ATK:
2800
DEF:
2100
2 "HERO" monsters Once per turn: You can target 1 face-up monster your opponent controls and 1 other "HERO" monster you control; the opponent's targeted monster loses ATK and DEF equal to the ATK of your targeted monster, until the end of this turn.
Boneheimer
ATK:
850
DEF:
400
This monster wanders the seas, sucking dry any creatures it may encounter.
Corroding Shark
ATK:
1100
DEF:
700
A zombie shark that can deliver its lethal curse with a spell.
Crazy Fish
ATK:
1600
DEF:
1200
A flying fish that attacks with its pointed head.
Gishki Psychelone
ATK:
2150
DEF:
1650
You can Ritual Summon this card with any "Gishki" Ritual Spell Card. Once per turn: You can declare 1 Monster Type and Attribute; look at 1 random card in your opponent's hand, and if it is a monster of the declared Type and Attribute, shuffle it into the Deck. Otherwise, return it to the hand.
Adreus, Keeper of Armageddon
ATK:
2600
DEF:
1700
2 Level 5 monsters Once per turn: You can detach 1 Xyz Material from this card to target 1 face-up card your opponent controls; destroy it.
Evigishki Merrowgeist
ATK:
2100
DEF:
1600
2 Level 4 monsters After damage calculation, if this card destroys an opponent's monster by battle: You can detach 1 Xyz Material from this card; shuffle the destroyed monster into the Deck instead of sending it to the Graveyard.
Evilswarm Bahamut
ATK:
2350
DEF:
1350
2 Level 4 "lswarm" monsters Once per turn: You can detach 1 Xyz Material from this card to target 1 face-up monster your opponent controls; discard 1 "lswarm" monster, and if you do, take control of that opponent's monster.
Evilswarm Thanatos
ATK:
2350
DEF:
1350
2 Level 4 DARK monsters Once per turn (Quick Effect): You can detach 1 material from this card; this face-up card is unaffected by other monster effects this turn.
Maestroke the Symphony Djinn
ATK:
1800
DEF:
2300
2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up Attack Position monster your opponent controls; change it to face-down Defense Position. If a "Djinn" Xyz Monster you control would be destroyed, you can detach 1 Xyz Material from that monster instead.
Mermail Abysstrite
ATK:
1600
DEF:
2800
3 Level 3 monsters During either player's turn, when your opponent targets exactly 1 face-up "Mermail" monster you control for an attack, or with a Spell/Trap effect that could have targeted this card (except during the Damage Step): You can detach 1 Xyz Material from this card; that attack/effect now targets this card. When this card is destroyed and sent to the Graveyard: You can target 1 "Mermail" monster in your Graveyard, except "Mermail Abysstrite"; Special Summon that target.
Number 28: Titanic Moth
ATK:
2400
DEF:
2200
2 Level 7 monsters If you control no other monsters, this card can attack directly, but when it does so using this effect, the battle damage inflicted to your opponent is halved. When this card inflicts battle damage to your opponent: You can detach 1 Xyz Material from this card; inflict 500 damage to your opponent for each card in their hand.
Number 32: Shark Drake
ATK:
2800
DEF:
2100
3 Level 4 monsters Once per turn, when this attacking card destroys an opponent's monster by battle and sends it to the Graveyard: You can detach 1 Xyz Material from this card; Special Summon the destroyed monster to your opponent's side of the field in face-up Attack Position, also it loses 1000 ATK, and if you do Summon this way, this card can make a second attack during this Battle Phase.
Number 37: Hope Woven Dragon Spider Shark
ATK:
2600
DEF:
2100
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.
Number 45: Crumble Logos the Prophet of Demolition
ATK:
2200
DEF:
0
2 or more Level 2 monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 other face-up card on the field; while this monster is face-up on the field, that target has its effects negated. While that target is on the field, cards with the same name as that target, and their effects, cannot be activated.
Number 56: Gold Rat
ATK:
500
DEF:
600
3 Level 1 monsters Once per turn: You can detach 1 Xyz Material from this card; draw 1 card, then shuffle 1 card from your hand into the Deck.
Soul of Silvermountain
ATK:
1800
DEF:
2200
2 Level 3 EARTH monsters Once per turn: You can detach 1 Xyz Material from this card to target 1 Set card in your opponent's Spell & Trap Card Zone; it cannot be activated while this card is face-up on the field. If this card destroys an opponent's monster by battle while it has Xyz Material: You can target 1 EARTH monster in your Graveyard; Special Summon that target in face-up Defense Position.
Submersible Carrier Aero Shark
ATK:
1900
DEF:
1000
2 Level 3 monsters Once per turn: You can detach 1 Xyz Material from this card; inflict 100 damage to your opponent for each of your banished monsters.
Big Wave Small Wave
Destroy all face-up WATER monsters you control, then you can Special Summon WATER monsters from your hand, up to the number of monsters destroyed by this effect.
Cracking
Once per turn, when a monster(s) is sent from the field to the Graveyard by a card effect: Inflict 800 damage to the owner of the monster(s).
Different Dimension Deepsea Trench
When this card resolves: Banish 1 WATER monster from your hand, Graveyard, or face-up on your field. Then, when this face-up card on the field is destroyed: Special Summon that banished monster to your side of the field.
Dodododraw
Send 1 "Dododo" monster from your hand or face-up from your side of the field to the Graveyard; draw 2 cards. You can only activate 1 "Dodododraw" per turn.
Fissure
Destroy the 1 face-up monster your opponent controls that has the lowest ATK (your choice, if tied).
Gogogo Talisman
While you control 2 or more "Gogogo" monsters, you take no effect damage. Once per turn, when an attack is declared involving a "Gogogo" monster you control: You can activate this effect; that monster you control cannot be destroyed by that battle.
Lemuria, the Forgotten City
This card's name is treated as "Umi". All WATER monsters gain 200 ATK and DEF. Once per turn, during your Main Phase: You can have all WATER monsters you currently control gain Levels equal to the number of WATER monsters you currently control, until the End Phase.
Paralyzing Chain
When a card(s) is sent from your opponent's Deck to the Graveyard by a card effect, inflict 300 damage to your opponent.
Sea Lord's Amulet
Send this card to the Graveyard during your opponent's 3rd End Phase after activation. WATER monsters you control cannot be destroyed by your opponent's card effects.
Surface
Target 1 Level 3 or lower Fish, Sea Serpent, or Aqua monster in your GY; Special Summon it in face-up Defense Position.
Thunder Short
Inflict 400 damage to your opponent for each monster they control.
Black Illusion
Until the end of this turn, all DARK Spellcaster-Type monsters with 2000 or more ATK you currently control cannot be destroyed by battle, their effects are negated, also they are unaffected by your opponent's card effects.
Explosive Urchin
Activate only when your opponent activates a Trap Card. During your Standby Phase: Inflict 1000 damage to your opponent. Your opponent must control a face-up Trap Card for you to activate and resolve this effect. During your 3rd End Phase after activation, send this card to the Graveyard.
Guard Go!
If a "Gagaga", "Dododo", and/or "Gogogo" monster(s) you control is destroyed by battle or card effect and sent to the Graveyard: Target 1 of those monsters; Special Summon it, then you can Special Summon up to 2 "Gagaga", "Dododo", and/or "Gogogo" monsters from your hand in Defense Position.
Infestation Infection
Once per turn: You can shuffle 1 "lswarm" monster from your hand or face-up from your side of the field into the Main Deck; add 1 "lswarm" monster from your Deck to your hand.
Infestation Terminus
Target 1 "lswarm" monster you control and 2 cards your opponent controls; banish the first target, and if you do, return the second targets to the hand.
Judgment of the Desert
The Battle Positions of face-up monsters that are flipped face-up after activation of this card cannot be changed, except with a card effect.
Poseidon Wave
When an opponent's monster declares an attack: Target the attacking monster; negate the attack, and if you do, inflict 800 damage to your opponent for each Fish, Sea Serpent, or Aqua-Type monster you control.
Xyz Reborn
Target 1 Xyz Monster in your Graveyard; Special Summon it, and if you do, attach this card to it as an Xyz Material.