| Hydrogenius | ||
|---|---|---|
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| Attribute | WATER 
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| Type(s) | [ Aqua/Effect ] | |
| Guardian Stars | Neptune (Neptune (♆)), Mercury (Mercury (☿)) | |
| Level | 4 
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| ATK / DEF | 1800 / 1100 | |
Lore Once per turn, you can send 1 WATER monster from your hand to the Graveyard, then banish a number of cards from your opponent's Graveyard equal the level of that sent monster. All face-up Aqua and WATER monsters on the field gains 300 ATK
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