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.
Reduce the Cooldown of Battle Shout by 3s.
Reduce your active Cooldowns by 8% after getting an Elimination.
Reduce your damage taken by 8% for 2s after hitting an enemy with Commander's Grab.
Increase your Healing received by 18% while your Bulwark is active.
Increase your maximum Health by 750.
Increase your Attack Speed by 40%, but reduce your damage-per-shot by 25%.