I’m currently saving for 6.5 anni (Blackbeard v2 🙏) I have a question

I’m currently saving 4 star frags and rds for 6.5 anni, I was just wondering is it worth it to fully max out aokiji? Because by the time I level him up through special training he’ll be out of the meta lowkey.

I have 601 frags and only need 220 to max aokiji, I want to maximise frags for Blackbeard or whatever comes out 6.5 anni, but I’ll save enough for that time.