Just beat the main game, didn’t lose any battles.
Just beat kukui, was a close one.
Did this all without being overleveled lol
Update
Been doing post game, just lost my first battle to the red character in the battle tree. Gonna reload. I lsot cos my team was all on low hp
Machamp, lilligant, metagross, lunala, incineroar and muk 4 members were from mememele, and I have 2 ones that left the team, pelipper and magnezone that were both melemele
By endgame I had a pretty big weakness to fairy and flying. Both kukui and the fight in the motel to start the postgame were hard af
The toughest for me were some of the totems especially Lana (since Araquanid’s bug typing countered Dartrix and what would be my Alolan Raichu was still a Pichu) and Acerola (dealing with the Mimikyu’s friends it would spawn in). Endgame was the easiest part for me because my team was finally at full strength.