Very nice game! I really liked your music and all the different sprites. I appreciated the multiple spell options.
Given the running around in a void, I can't help but wish it were a survivor-like with some possible AoE on-field effects that could be earned. There isn't much of a sense of progression (or I didn't survive long enough, perhaps) so it does feel really endless. There is a bit of a bug that collision with enemies sort of sends you flying? And when you die, you don't have the option to restart, which is a shame, because I'd like to!
I hope you add a bit more to this game, because it's quite fun!