I watched shofu's playthrough a while back and was surprised that there was a different route for Amaria! I myself got the Zekrom one, I thought the puzzle was the most annoying thing the game had to put me through, personally i would've liked more story instead of focusing on making the puzzles so goddamn strenuous lol. Imo Amaria's personality is quite a bit forced, I don't know why she's so important that she gets all this "screen time"but I guess we'll see, like, in 2018 when E18 comes out Kappa.
The battle itself wasn't that challenging for me, I just had Electric field on my magnezone with analyze and a focus sash, set the terrain first turn, so that I would override hers, then revenge kill with discharge, and i swept from there with the rest of my team, it seems to be the easy way out in most of Reborn gyms, just change the field, in my new playthrough I have a Gardevoir with Misty terrain and I do the same strat every time! c: