this sounded cool at first until I thought of the possibilities. if you don't have to wait for the grenade to go away then that means you can infinity spam lightning grenades in one spot making anyone who sees it too scared to go there. if you have to wait for the full life of the grenade then you still can effectively hold choke points. The other thing that I see that is a bit op is that you can spam stickies until you hit someone. it makes a free kill much easier to obtain. cool exotic but a bit op.