So my dude's name is going to be Darius. He doesn't much like fighting, he instead wants to enhance every day life either with magic or with a mundane substitute. When it does come to a fight though, and he needs to use magic, his go-to is pulling water from the atmosphere to create a multi-useful blob orb thing. Darius causes the outside of the blob to hold the rest of the water in, effectively making it a water balloon. A water balloon that can be used to block and deflect attacks! When struck by an intrusive force, the glob will condense as a reaction scaling with the force behind the blow, effectively becoming solid against that attack. Alternatively the glob can be turned into an offensive force in a number of ways, Darius could slam the glob into his opponent, controlling it with magic, or I guess just brute force even. The same condensing property would then apply as an offensive force, kinda like hitting water from a really long drop. You may be ready to ask, but Effort why don't you just use ice as a shield and to pummel people with?
Well I feel like a blob could serve more utility, perhaps to be used to help avoid attacks altogether, or cushion a fall or to wear on the lower half of the body and bounce or roll around. I don't know maybe I'm just putting too much thought into it, heh.