LOL, not sure exactly why, but that overcharged fire bolt spell situation had me laughing, maybe because the town was looking around like "WTF was that?"
Why in this type of plot the childhood friend can't just slowly redeem herself/himself and become romantic interest? Like wouldn't it be more interesting than hero was abused, hero meets good girl/boy, hero dates good girl/boy
Crimson-black blaze, king of myriad worlds,
though I promulgate the laws of nature,
I am the alias of destruction incarnate
in accordance with the principles of all creation.
Let the hammer of eternity descend unto me!
Explosion!