he wouldn't be immune, buuuuutttt he does have a spell that could turn her powers off! the official definition of Lex Divina is that it prevents skills and spells from being used by whoever he casts it on, along with literally silencing them. it's super temporary though, and only lasts like 2 minutes at a time. he can cast it again as soon as it runs out, though.

(and here's where i feel like ashraf should start quoting ursula. AND DON'T FORGET THE POWER OF BODY LANGUAGE~)