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 400 after activating Battle Shout.
Increase your maximum Health by 300.
Increase the Health of your Bulwark by 400.
Reduce your damage taken by 8% for 2s after hitting an enemy with Commander's Grab.
Reduce the Cooldown of Battle Shout by 3s.
Targets hit by Commander's Grab are Stunned for an additional 1.4s.