So I ended up not leveling up my party all to lv. 60, but around 55-57 range (except for Ribombee). To get rare mons off of the GTS, I took up the habit of grinding Jangmo-o SOS battles until a Kommo-o (or Hakamo-o 1 level away from evolving with good IVs) appeared, caught it, and put it up on the GTS while also taking its free Razor Claw and evolving a Sneasel for later. Got another UB
by trading a Litten, and something else I left up on the GTS (maybe another Litten or a Popplio, I really don't remember) got me a jap. Type: Null
Someone must've either had a spare or was desperate.
I chained quite a few Hakamo-o in SOS battles enough to level up a lot, but sadly no shiny ever appeared (did have a Jangno-o call for a Kommo-o on its first turn, but I accidentally killed it
)
Went through the E4:
Post game
I feel regretful I didn't raise my team all up to lv. 60 because
sure showed me how hard post game is gonna be.