- While the card alludes to a spell that costs 99 or less, there is no spell that costs 100 or more, so all water spells in the game can be cast with this ability. As of this card's release, only Gekabankai Ga Ryumizu 卍 has a cost of 99, with Invincible Technology at 13 being the previously highest cost water spell.
- This card is the basis of the following decktype(s):
| 1) Mono-Water Magic Tool |
| 卍 Grand Zero 卍 |
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