- Location
- UK
It doesn't cool the water directly, and water wicks heat vastly faster than air, and the water would also probably get sucked into the active jutsu often enough to impede the function. If you don't prime it with a funnel to open air from the start, it'll probably just do nothing much.That said I would love to consider what happens if it's cast, say, 10m underwater in an ocean. My opinion is "it would probably be beautiful, also maybe it'd last longer because once the effect wears off, it's a substantial volume of water that has to heat back up, not air?"
My expectation if you do prime it, or cast it on the surface, is that it's slightly smaller and more sporadic, and also that it acts as a powerful wave generator. Eventually the water gets thick enough to cover the underwater one, or you build up enough ice that the above-water one is persistently blocked off. But I'm hardly sure. The dynamics don't seem easily reducible to simple rate equations the way casting it in the sky does.