[@skepic] 
You make a valid point with the counter-WMD thing. I'm still leery, but you make a good argument.

The smokescreen being turned into a non-white phosphorus blanket smokescreen is much better, perhaps a passive mist that she can ramp up when she wishes would be fine.

Grenade to be removed entirely. I reckon with a bit more finalising on the actual specifics of the main ability, this can work much better. I assume she's an emitter class?