Demigods: the dark galaxy prince

The people of Texas were living normally when they received a surprising visit from an extra terrestrial leader of a dark galaxy attacking Texas and making this invasion only the beginning to conquer Earth. The army couldn't stop him, but out of nowhere, some human mortals who lived on Earth have been developing the power of controlling elements like fire and water. They faced that monster again and again in battles reviving the era of epics. Many legendary creatures aided that dark leader while the heroes to be doing their best to defend their planet and stop the invasion that would end the human race. Earth was officially under no human mercy, and the only hope… Was the Demigods.