She will truly get what she deserves when (not if) Garling drives his sword into her once the Mother Flame is perfected.
I've been long thinking that the big reason she's on the bad guys' side right now isn't just to perfect the mother flame, but also to improve or even make
more seraphim.
If we're going to have animal-themed seraphim= there's plenty of candidates. All the admirals have their own animals; I could imagine any of the difficult ones getting a more obedient version if they felt it was needed.
But if they limit that to not include current admirals, there's still a certain marine who basically fits the same model as the reasons they made warlord seraphim:
1: He's very strong, but disobedient and hard to control.
2: Has a name with an animal in it
3: Is also quite old and said to be somewhat in decline
4: More doylistically, he cannot be reasonably expected to fight/beat luffy, but would make for incredible hype if he did
5: Is currently captured on Hachinosu, meaning they have a golden chance to replace him.
Really, considering the animal theme of the Seraphim, pretty much anything named
S-Monkey would be absolutely horrifying.