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.
Reduce your active Cooldowns by 16% after getting an Elimination.
Increase your Movement Speed by 8% for 3s after activating Battle Shout.
Increase your maximum Health by 300.
Reduce the Cooldown of Battle Shout by 3s.
Increase your Attack Speed by 40%, but reduce your damage-per-shot by 25%.