Wait or spend?

IV?

I mean, it's good where it is now. If you want to use it for defensive purposes then do it if it means placing higher in a particular gym

Since it's already VERY strong, i wouldn't spend dust on him right now, you probably have other mons that need investment, nad this one doesn't, not for now.

Wow 22 kg Dragonite!!?!?!??? Did you ever feed her? She's so skinny, and begging for candies!