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 Prowl by 1s each time you hit an enemy with a dagger.
Increase your maximum Health by 100.
Reduce the Cooldown of Nine Lives by 2s.
Reduce your damage taken by 18% for 2s after using Nine Lives.
Heal for 120 every 1s while Prowl is active.