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 Ammo by 25.
Increase the Movement Speed boost of Agility by 4%.
Increase your maximum Health by 50.
Heal for 120 after activating Shadow Step.
Heal for 800 after hitting at least one enemy with Skewer.