Flamethrower vs broken trigger

Cassie was approaching, moving along rooftops to try and get to them.  Below the rooftops, the entire neighborhood was a shifting morass of black fronds,grasping, seizing what they could, crushing.  Fire and the lights of other powers were visible on the opposite side of the battlefield.  Miss Militia’s group.  A flamethrower-

…

-torched the worst of the tendrils, keeping them at bay.  The fire stopped as other capes stepped in.