yes, you can make watery looking characters/abilities.... water blast is by far the best for it obviously and is splashy- but dark using noir style can look pretty beautiful in blues.... personally I turn my water people into blood users though lol (dark red, blood splash everywhere kekekke). Really every set could fit a water splasher that doesn’t use weapons/electricity... as for secondaries, Sonic, FF, miasma, cold, time, etc all can be made to look watery— ff bubbles are pretty obvious since they already look like soap bubbles lol... but yah go to make a character and start editing the dark sets using soul noir style - they’ll look pretty watery