Man you are on your GRIND this game jam. I don't know why but I see your animated GIF pfp in the comments of so many jam submissions that I had to come check out what your game was all about. Good on you for rating and commenting on so many submissions.
As for Magic Mayhem, I liked it! It lagged a good bit for me, especially with 2+ other magic enemies, and the game was pretty dang hard, but overall I liked it. The graphics were clean, easy to read and fit the tone, the music slapped and was accompanied by some nice sound effects, and the particles added a good bit of juice to the spells.
I wish that the blue spell was more useful, it seemed like the least effective spell of the whole bunch, and that sucks because shotguns are usually my favorite in any game. I wish there were more spells to play around with as well, though I can understand keeping it to a short list to get a good level of polish on your MVP.
Overall a super solid little game, reminded me a bit of Realm of the Mad God and that's not a bad thing. Good stuff!