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.
Heal for an additional 320 after activating Battle Shout.
Generate 5 Ammo after activating Commander's Grab.
Increase the Health of your Bulwark by 400.
Increase your maximum Health by 750.
Gain 12% Lifesteal.
Increase your Attack Speed by 40%, but reduce your damage-per-shot by 25%.