Could the clone stack up Terror with a terror-melee anointed Facepuncher? If so, you could equip a shield/grenade with the terror-damage and fire rate anoint and terror ammo regen on the other shield/grenade for a serious boost to Zane. As I understand it, one of his limitations is having everything in gun damage. Having an extra 35% damage + 21% fire rate constantly up could be a pretty potent boost (an exact increase of 65.39% damage).
No it won’t work. You need to use it on your own.