Question about how this interacts with the new manamune:
-does it get procced at all?
-if it does, do each bolt cost you mana (effectively trippling mana cost of the toggle)?
Does it work if you're attacking a turret or other structure?
Also, would it be possible to make this effect a toggle? I can see some cases where the bolts would be detrimental (attracting tower agro when last hitting under enemy tower when said enemy is nearby, or hitting that galio when his w is active, or accidentally killing that guy that zilean ulted), and would be nice to turn it off in such (admitedly rare) cases.