Melee kills build up explosive energy within the ACD/0 Feedback Fence. Being struck by a melee attack unleashes this energy in a devastating explosion.
Melee hits grant Armor Charge, and you take less melee damage while you have Armor Charge. Taking melee damage causes you to emit a burst of damaging Arc energy that Jolts targets, consuming your Armor Charge and dealing more damage based on the number of stacks consumed.