A 2-tier upgrade available after Equivalent Exchange has been picked.
[Tier I]
On the first tier, the user's main gun gets a 0.13 damage increase for every point of health lost to Equivalent Exchange, before and after the acquisition of this ability. For a base robot with no Max Health upgrade, this is effectively a +6 (6.5) increase in damage.
[Tier II]
At the next and final upgrade, this perk would give the user a permanent +1HP for every 3 kills, but the user would lose 50% of this bonus on losing all lives.