Completely revamp anything and everything to have a slower, more deliberate combat system where players aren’t flying around like caffeinated hummingbirds. Also, add actual flavor and lore to the magic, and have players learn spells through storyline, NPCs and searching around, instead of them just thinking “Hm, what if instead of firing a ball of magic, I just made an instantaneous beam?” all of the sudden.
Also also, rewrite the dialog, as I’m actually good at that.