Normal people don't really have the luxury of deciding what they use.
I have a big problem that I simply can't get my Hime killed when on-element. Even after doing the only replacement that I can (Phul Hammer -> Jormungand Hammer) if I use Nidhoggr or B frame, I simply can't get oneshot anymore. Fuck. That kinda locks me into using SSR Baal for -50% Def...... that's how it works? That would've been nice to know before. That would explain why I've never, ever had an attack hit the same Hime twice.