One thing I'd like to suggest is that you can target foes and players by using their health bars along with their target circles. Sometimes the circles get a little crowded, and it's hard to click the one you want, like say you wanted to target an enemy with Dark element, but you ended up hitting one with Light element, healing that enemy instead of killing the Dark enemy.
I was pleased with the unoriginal idea revolutionized by the original gameplay. It felt like I was playing an entirely new game, never actually done before. Also, your moral of the game was also very decent, and I hope that you continue to create works of art such as this in the future.