Hydromancer

A Hydromancer is an Elementalist who is dedicated to the element of Water. These characters are valued for their ability to slow to multiple opponents, using skills like Frozen Burst and Mind Freeze. They can indirectly make opponents' move because most try to when they are Crippled or hexed and making skills based on movement more effective. An archetypal build might be:

The name comes from "hydro" meaning water, and "mancer" meaning diviner.