Champion Idea- Elemental Human

The champion is all about the four elements wind, water,earth, and fire. The abilities change as the character progresses his/her first abilities are any of the four elements and change each game. Your ult cycles you through the elements being the first level is one elements and so on from that point. With each stance comes new abilities that can make the character ranged and melee with the possibility of getting weapons along the way. This would be sort of like but with a new style, just an idea I thought up a few minutes ago any thoughts or opinions.