I would give Wildfire a (personal) debuff like Trick Attack, increasing the potencies of Heatblast and Gauss/Ricochet.

Flamethrower I think should be the AoE equivalent of Air Anchor and share a cooldown.
Why am I forced to use a single target huge potency attack in a dungeon pull?
Have Flamethrower generate Battery gauge, maybe after the 5th tick so you don't need to channel for the full 10s.
Better yet, buff the potency for the first 5s from 80 to 100 so those first 5s are worth more too.