This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Gain 50% Lifesteal.
Generate 2 Ammo after activating Siege Shield.
Increase your maximum Ammo by 1.
Reduce the Cooldown of Siege Shield by 3.2s.
Increase your maximum Health by 600.