yes you can... if you replaced final round on thorn with firefly or hawkmoons first luck in the chamber, they would both be better than fatebringer, the arc damage is only useful against captains which you should super/shotgun/sniper/avoid/team shoot anyway, if the jewel of osiris had firefly that too would be amazing, the ONLY reason people use fatebringer is because of firefly, if it didn't have arc i'd still use it, if it didn't have field scout it would have 1 less bullet... if it didn't have outlaw... outlaw has a cooldown and so it doesnt proc all the time give me any other reload perk and i'll take it.... you take away the firefly: nobody uses fatebringer