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 your damage taken by 10% while Prowl is active.
Reduce the Cooldown of Prowl by 1s each time you hit an enemy with a dagger.
Heal for an additional 160 with Nine Lives.
Heal for 80 every 1s while Prowl is active.
Reduce the Cooldown of Nine Lives by 4s.