Talked to you on discord about it, but for posterity's sake, I'm leaving this bad boy here.

Crashes when the config is checked to see if the Glyph enabled, since the new Glyph isn't in the config at all. Circumventing it by making my own Glyph class and bruteforcing it into the glyph map still crashes, since the SpellBookGUI still check the same Config line.

crashlog.txt