Quote Originally Posted by Douglas View Post
I'm actually not sure that's the reason John hasn't copied Seraphina's ability. As I recall, it's been established that he can only copy four abilities at a time, and he currently has abilities from Cecile, Zeke, Remi, and Arlo, so he's at that limit. To copy Seraphina, he'd have to replace one of them, and swapping out a power without waiting for it to expire is something he's never been shown as able to do.
It wasn't specified how the replacement works. It's possible he needs to discard all to get her ability, and that in his opinion isn't worth the trade-off. Her ability is complex and harder to copy.