Hydrokinesis is the ability to mentally manipulate water. One with this ability could even shift water through its solid, liquid and gas phases. The ability could even be used to pull ambient moisture out of the air to form water, withstanding great water pressure, or even raise water to send it at foes in the form of tidal waves or any other form the user wishes. One with this ability can even 'rip' the water out of people, similar to Dehydration. Another faculty of this ability is Hydrogenesis/Aquagenesis in which one can generate water.
Example of people with this power: Adrian Kilvayne, Ashley Knight, Erica Talara,