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Aegaion the Sea Castrum
Aegaion the Sea Castrum
X
WATER WATER Rank Rank 8 [ Machine / Xyz / Effect ] ATK ? DEF 3000
2 Level 8 monsters
During either player's turn: You can banish 1 random face-down monster from your opponent's Extra Deck, face-up, and if you do, this card's ATK becomes equal to the banished monster's. During either player's turn: You can detach 1 Xyz Material from this card, then target 1 of your opponent's banished Fusion, Synchro, or Xyz Monsters; return it to the Extra Deck, and if you do, destroy 1 monster your opponent controls with the same monster card type (Fusion, Synchro, or Xyz). You can only use each effect of "Aegaion the Sea Castrum" once per turn.
Amphibious Bugroth MK-11
Amphibious Bugroth MK-11
X
WATER WATER Level Level 5 [ Machine / Effect ] ATK 1850 DEF 1500
While "Umi" is not on the field, this card gains 700 ATK, also it cannot attack directly. While "Umi" is on the field: You can target 1 face-up non-WATER monster on the field; destroy it. You can only use this effect of "Amphibious Bugroth MK-11" once per turn.
Crystron Sulfefnir
Crystron Sulfefnir
X
WATER WATER Level Level 5 [ Machine / Effect ] ATK 2000 DEF 1500
If this card is in your hand or Graveyard: You can discard 1 "Crystron" card, except "Crystron Sulfefnir"; Special Summon this card in Defense Position, then destroy 1 card you control. If this card on the field is destroyed by battle or card effect: You can Special Summon 1 "Crystron" monster from your Deck in Defense Position. You can only use each effect of "Crystron Sulfefnir" once per turn.
Dinomist Brachion
Dinomist Brachion
X
WATER WATER Level Level 5 [ Machine / Pendulum / Effect ] ATK 2000 DEF 800
Pendulum Scale P Scale 6 Once, while this card is in your Pendulum Zone, you can negate an activated card effect that targets another "Dinomist" card(s) you control, then destroy this card.
If you do not control "Dinomist Brachion" in your Monster Zone and your opponent controls a monster that has the highest ATK on the field (even if it's tied), you can Special Summon this card (from your hand).
Metal Fish
Metal Fish
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WATER WATER Level Level 5 [ Machine / Normal ] ATK 1600 DEF 1900
A metal fish with a razor-sharp caudal fin.
Ultimate Bright Knight Ursatron Alpha
Ultimate Bright Knight Ursatron Alpha
X
WATER WATER Level Level 7 [ Machine / Effect ] ATK 2000 DEF 700
(This card is always treated as an "Ursarctic" and "Drytron" card.)
Cannot be Normal Summoned/Set. Must be Special Summoned by card effect. If you control an "Ursarctic" or "Drytron" monster, except "Ultimate Bright Knight Ursatron Alpha": You can Special Summon this card from your hand, then you can add 1 "Ursarctic" or "Drytron" Spell/Trap from your Deck to your hand. You can only use this effect of "Ultimate Bright Knight Ursatron Alpha" once per turn.
Ultimate Flagship Ursatron
Ultimate Flagship Ursatron
X
WATER WATER Level Level 7 [ Machine / Fusion / Effect ] ATK 2000 DEF 700
(This card is always treated as an "Ursarctic" and "Drytron" card.)
Must be Special Summoned with "Ursarctic Drytron". Once per turn, if another Effect Monster is Special Summoned to your field (except during the Damage Step): You can add 1 "Ursarctic" or "Drytron" monster from your Deck to your hand. Once per turn: You can target 1 of your banished "Ursarctic" or "Drytron" monsters; add it to your hand.

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