Ah, hitting two birds with one stone, I like it.

With your character's ability, and considering that he had a chance to recover some stamina, doing something like that in the nick of time is simple enough. Though Aiv would take a form of recoil from the blast, as a result. A big recoil. Imagine a point-blank shotgun to the face kinda recoil. It's gonna hurt too, like a lot. He'll be taking a chunk of shrapnel somewhere. I'll let you determine the place yourself. 

Won't do anything as of now, but accumulate enough of these minor injuries, and things will start to look pretty grim.