https://youtu.be/F3m2-buxDUY
FPS wizards Battle
http://www.grimoirethegame.com/
I like the concept, but it looks rather simple.
There is another early access one (called Battlemage IIRC?) that seems to have gathered the same opinion. I think the idea could be done well, if there were some extra creativity involved other than just a simple FPS conversion.
I watched some youtube on it, the graphics are poorish, but the lightning bolts looked fun