I don't usually post in forums, but wanted to cap off our adventure. Reborn is one of my favourite games of all time, and top Pokémon one.
I didn't want to steamroll through all the new content at once, so I only finished the postgame yesterday.
Played on set mode with no items used in battle, but in the end I couldn't clear the final Lin route gauntlet without full healing team for anomaly Arceus.
First picture is E4+champion team, second picture is winning Lin route gauntlet team. I can't work out how to move them, so they're both at the bottom.
Moves and items changed as needed for battles of course, but...
Sheer Force Feraligatr - No dragon dance, decent bulk investment. My starter, of course.
Prankster Meowstic M - I think this is a common pick, very useful screen setter and status spreader for enabling the team. Met him in a shack in Peridot.
Compound Eyes Galvantula - Webs weren't as useful in this game as you'd think they'd be. Met him in a building in north Peridot.
Early Bird Dodrio - Swords dance sweeping every single major battle for me, GOATdrio. Met him along the Beryl cliffside.
Mega Banette - No destiny bond, spread will-o-wisps and came with gunk shot egg move. Met him in the Beryl cemetery.
Skill Link Cinccino (*) - Avoided using king's rock in almost every battle, but there may have been some para flash flinch debauchery against pulse Arceus 1... Met her from an egg after Chrysolia forest.
These 3 came about much later to help out.
Prankster Whimsicott (*) - Full special investment blowing things up with mostly nature power, heinous damage from blessed field pixie plate priority judgement. Also solo defeated God. Met her from an egg when I decided I wanted more friends before Titania.
Victory Star Victini - This thing was probably too OP to use, especially with the 50% damage boost in new world. Didn't do anything against anomaly Arceus though.
Magician Hoopa-Confined (*) - Never unbound, it stops being cute. Only team member who doesn't get a photo reel below. To be fair, it was rarely very useful.