Mind you Water and Air have interesting combos that are potent, but they don't as readily rack up.
Right. They feel more like a "CC" combo, with the Rain + Shock stun, which can be super effective. Hydro feels a little awkward in that mix though, since there isn't a pure water spell that leaves a puddle on the ground. All the water spells seem to be about leaving behind ice, which doesn't really combo with shock until it thaws out.
