"Or maybe instead seeing dark, you can see everything in monochrome and brighter instead automatically." I guess it would be possible but how useful it is would be anotehr question. I think it could get annoying rather quiekly to see not in colors.
That would only affect the area which is normally darkened. So basically the area marked with 1 works as it does right now, the area marked with 2 would be monochrome bright. And for those not liking the monochrome, they can use "Enhanced Vision" field skill.
Maybe "Tail Whip" instead?
Salamander has already Tail Whip. Strike, Attack, Whip, Hit... Though Whip fits a pure AoE best.