Quoted By:
Ok, so .. spoilers ahead for anyone who hasn't completed the main story.
I tried not to read anything online during my first play through and once i beat the elite four, i assumed i wouldn't get another chance to catch Tapu Koko - so i caught him and saved my game. He has a shit nature. Then i found out if you knock him out, he respawns later so you can soft-reset for a good nature. I dun goofed.
I want to trade to get a good one (it can be hacked i suppose, i just need a good battle tree team to earn some BP ... my current mons seem to be useless). I hatched 2 shiny smeargles which i'd be willing to trade for a timid, decent IV spread Tapu Koko.
The shinies are legit by the way. i was just lucky.