I did the post game quests and i don’t know what else to do any ideas

You’ve done the devs I’m assuming right? Other than that its shiny hunting, iv breeding and the living dex

I have not done dev island

then dev island I think is the next thing to do

how do you ev and iv in insurgence

evs with macho brace and ev trainer, ivs are with iv stones or iv breeding if you’ve maxed out your delta ditto