WATER / Sea Serpent-Type Xyz / Rank 4 / ATK 2600 / DEF 2100
2 Level 4 WATER monsters
Once per turn: You can detach 1 Xyz Material from this card; Special Summon 1 Rank 3 or lower WATER Xyz Monster from your Extra Deck. This card cannot attack for the rest of this turn.
SECRET RARE
LIGHT / Thunder / Level 4 / ATK 1600 / DEF 1200
You can discard this card; add 2 Level 4 LIGHT Thunder-Type monsters of the same name with 1600 or less ATK from your Deck to your hand. You can only use the effect of "Thunder Sea Horse" once per turn. You cannot Special Summon during the turn you activate this effect.
SECRET RARE
EARTH / Plant / Level 4 / ATK 1200 / DEF 800
While a Field Spell Card is face-up on the field, this card gains 1000 ATK.
RARE
WATER / Fish-Type Tuner / Level 1 / ATK 200 / DEF 100
If you have a monster(s) in your Graveyard other than "Fishborg Launcher", and all of them are WATER: You can Special Summon this card from your Graveyard. If you do, banish it when it leaves the field. This card cannot be used as a Synchro Material Monster, except for the Synchro Summon of a WATER monster. You can only use the effect of "Fishborg Launcher" once per turn.
COMMON
WATER / Aqua / Level 4 / ATK 1700 / DEF 1000
If a Fish, Sea Serpent, or Aqua-Type monster you control attacks a Defense Position monster, inflict piercing battle damage to your opponent.
RARE
WATER / Dragon / Level 4 / ATK 1400 / DEF 900
When this card is destroyed by battle or by a card effect and sent to the Graveyard: Place 1 Ice Counter on each face-up monster on the field.
COMMON
WATER / Dragon / Level 8 / ATK 2800 / DEF 1800
You can Special Summon this card (from your hand) by removing 4 Ice Counters from anywhere on the field. Other monsters with Ice Counters cannot attack or change their battle positions.
COMMON
DARK / Beast / Level 3 / ATK 800 / DEF 1200
Cannot be Special Summoned. Once per turn, if this card is in face-up Attack Position: You can send 1 monster from your hand to the Graveyard to target 1 face-up Defense Position monster your opponent controls; take control of it until the End Phase. It cannot change its battle position this turn.
COMMON
WATER / Fish / Level 5 / ATK 0 DEF 0
This card gains 500 ATK and DEF for each Fish, Sea Serpent, or Aqua-Type monster in your Graveyard.
COMMON
LIGHT / Insect / Level 3 / ATK 200 / DEF 1400
FLIP: Target 1 face-up Machine-Type monster your opponent controls; take control of that target until your next End Phase.If this card is destroyed by battle: The monster that destroyed it loses 500 ATK and DEF.
COMMON
Continuous Spell
Once per turn, when the battle position of a Rock-Type monster you control is changed: You can target 1 Spell/Trap Card your opponent controls; destroy that target.
SUPER RARE
Continuous Spell
Each time a "Spellbook" Spell Card is activated, place 1 Spell Counter on this card. All Spellcaster-Type monsters you control gain 100 ATK for each Spell Counter on this card. When this card with Spell Counter(s) is destroyed and sent to the Graveyard: You can add 1 Spellcaster-Type monster from your Deck to your hand, whose Level is less than or equal to the number of Spell Counters that were on this card.
RARE
Normal Spell
If you have 5 or more "Spellbook" Spell Cards in your Graveyard: Reveal the top 2 cards of your Deck, add any revealed "Spellbook" Spell Cards to your hand, and shuffle any remaining cards into the Deck. You can only activate 1 "Spellbook Library of the Heliosphere" per turn. You cannot activate any Spell Cards the turn you activate this card, except "Spellbook" Spell Cards.
SECRET RARE
Equip Spell
You can only control 1 face-up "Noble Arms - Arfeudutyr". Equip only to a Warrior-Type monster. Once per turn: You can target 1 Set card your opponent controls; the equipped monster permanently loses 500 ATK, and if it does, destroy that target. (This ATK loss remains even if this card leaves the field or the monster becomes unaffected by card effects.) If this face-up card on the field is destroyed and sent to the Graveyard: You can target 1 face-up Warrior-Type "Noble Knight" monster you control; equip this card to that target. You can only use this effect of "Noble Arms - Arfeudutyr" once per turn.
RARE
EARTH / Rock-Type Xyz / Rank 3 / ATK 1300 / DEF 2000
2 Level 3 Rock-Type monsters
This card is unaffected by other monsters' effects. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; it gains 1000 DEF until the End Phase, and if it does, you take no effect damage from your opponent's card effects this turn.
SECRET RARE
WATER / Sea Serpent-Type Xyz / Rank 4 / ATK 1700 / DEF 1400
2 Level 4 monsters
While this card has an Xyz Material attached that was originally WATER, all WATER monsters you control gain 500 ATK. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; any card effects that activate in your opponent's Graveyard cannot be activated this turn.
SUPER RARE
WATER / Aqua / Level 2 / ATK 0 / DEF 0
When this card is Normal Summoned: You can send 1 "Slushy" from your Deck to the Graveyard. If you have 3 copies of "Slushy" total, either banished and/or in your Graveyard (combined): You can banish this card from your Graveyard to target 1 Level 5 or higher Sea Serpent-Type monster in your Graveyard; Special Summon that target. You can only use the Special Summoning effect of "Slushy" once per turn.
RARE
FIRE / Winged Beast / Level 6 / ATK 2400 / DEF 1200
When this card is Summoned: You can banish 1 "Ninja" or "Ninjitsu Art" card from your Graveyard to target 1 Set card your opponent controls; reveal that Set card, then return it to either the top or bottom of the Deck. Your opponent cannot activate the targeted card in response to this effect's activation. You can only use the effect of "Red Dragon Ninja" once per turn.
SUPER RARE
WATER / Fish / Level 4 / ATK 100 / DEF 2000
You can banish this card from your Graveyard to activate 1 of these effects;
● Increase the Levels of all "Mermail" monsters you currently control by 1.
● Increase the Levels of all "Mermail" monsters you currently control by 2.
RARE
Counter Trap
When your opponent activates a Spell/Trap Card with the same name as one in your Graveyard: Negate the activation, and if you do, destroy that card. Then you can add 1 card with that name from your Graveyard to your hand.
SECRET RARE