I describe what happens when spells are stacked, but nowhere else do I describe that he can cast two or three spells at once, as I do in Arcane Concentration. I just figured it'd be waaaaay easier to just list it in one place rather than copy and paste it for each magic school. But I mean, I can do that if you prefer.

Also, I'm stuck on splitting up the main pyromancy ability because it all draws from the same resources, rather than X fireballs, X shockwaves, etc. I'll keep mulling it over, but I welcome some advice on how to comply with your request without fundamentally altering the character's style.

Would the Rituals category not count as one ability? Honestly, it could even be a skill since it requires permission from opponents and quest partners to use, anyway.

Beyond that, I've made several changes, combining different similar abilities as you suggested. Let me know if it's moving me in the right direction. Thanks!