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.
Increase your maximum Health by 750.
Reduce your active Cooldowns by 8% after getting an Elimination.
Heal for an additional 320 after activating Battle Shout.
Reduce the Cooldown of Battle Shout by 1.2s.
Targets hit by Commander's Grab are Stunned for an additional 1.4s.