First of all, it drains your health, second of all the gun doesnt do double damage IN PVP (keyword: pvp) it goes from 40 to something close to a 60 crit hit. Aka it will do 50% extra damage. That is not worth it since you also lose health which will be a huge disadvantage in trials... You seem to not know alot about the gun, do you even touch of malice? (I have the gun)