I start the battle with Gym Leader Orion.
The Vulpix goes down in one Bite to Gyarados.
Deerling is destroyed in one Fury Cutter.
In a bit of a scarier fight, Charmeleon gets greedy and goes for the heal, but was still in range to die to Boldore.
Unfortunately I needed a clean switch into Gyarados, and Bibarel was the best option.
Gyarados finishes the fight after a few hits with a critical Bite.
I won the fight, but not without sacrifice, however out of all the Pokemon to die, I needed Bibarel the least.