Lucius Best is not your ordinary guy. He's frozen water into ice instantly whenever he wants to. This is a special power. He's frozen large or small amounts of water into ice without any effort.
He uses this power to fight bad people. In fact, he is a superhero, and his superhero name is Frozone. But he is not perfect. He needs water in the air or a lake or river to freeze it.
He cannot freeze anything if he doesn't have water. He's a cool superhero.