Thanks. I also like the names of the phases of her power: "Sol" "Sol Regem" "Sol Requiem" and "Sol Invictus"
Each one of them just makes the fire hotter and gives her more hax. Sol allows the user to cast any spell through a fire that surges from their forehead (a fire tounge, like in the bible) regem allows the user to burn spells, countering them, requiem just makes the user into an immortal skeleton and invictus allows the user to burn ideas. Like this girl can burn her own death, the passage of time and at a certain point she just flexes by burning the number 16