Yes, I know that the name would be better served as high tide, but then that is already a "magic card name" and wanted to avoid it if possible. (so I went with a "mass of water style". Also I think that a weapon should have a 1 word only name while "high tide" had two words.
And yeah, the tidal theme is also nice (and would probably have more uses for dual elements decks). I tought at first on that (but pendulum was more wordy).
Another possibility I tought of was that instead of at the end of turn, it would put a pillar per hit (for weird combinations with adrenaline and flying weapon).
Thanks for the suggestions so far
Odinvanguard:
1) Yeah, the stats are a bit bumped tought 5 water cost is almost like titan, but the weapon only gives quanta. (and outside of ice bolt which is underused) you don't benefit from excess of water quanta.
2) yeah it puts one into play, the difference between that and putting into your hand is 1 more water quanta at the end of your turn.
If the attack fails it doesn't put a water pillar, but that's too wordy to appear in the card. About the stats, it may end with something similar to the Darkness weapon if it seems too powerful.
For the artwork, a classic whirpool could be enough (and having teeth or so for the upped one representing the monster)