i defeated my betrothed in our post-Grant doubles battle :)

it ended up being my swirlix, roselia, lucario, and frogadier versus zir snorlax, bagon, lucario, and pikachu.

Sadly, at this point in the game, Pikachu is just too squishy to get to exploit Light Ball, and unevolved Dragon-types just cannot handle Fairy Wind. It was a close battle overall, though. Snorlax can really do quite a lot if you let it.