Board Thread:Questions and Answers/@comment-15964986-20130825095138/@comment-1038387-20130825183734

I:GAU is a video game, and not mainstream. They can take liberties if the story needs it. Or if it just looks cool.

In the mainstream universes, he has never shown the ability to manipulate water (though I'm not sure about the water-hand in The Waterbearer). His classic, standard power set does not include hydrokinesis.