proposal:
barry post-mind-wipe actually knows a lot about necromancy, he just doesn’t know he can use it, because lucretia would never know where to get his secret notes or personal books and erase them, she could just erase that barry was an extremely powerful necromancer + lich. he constantly recognizes necromantic circles, practices, signals, etc as he wanders around alive, but it never occurs to him to try using them or erasing them
(kravitz is grateful, later, because oh thank the queen 100+ years of necromantic study wasn’t just blasted into the minds of everyone in the planar system)
Mindwiped Barry, talking about necromancy: “I just think it’s neat”