When the Engineer attacks foes with a melee weapon, they have a chance to direct excess energy into their weapon, and then discharge it into the enemies they strike over the next 10 seconds. While supercharged, the Engineer gains additional Charge.
This causes the player's melee attack to change into a wider, rainbow-glowing arc (almost 360 degrees) and increases the damage by a certain amount.
(Requires a melee weapon)
Skill starts at a 3% chance to proc, then increases by +0.5% per level.