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 damage you take by 12% while at or below 40% Health.
Reduce your damage taken by 24% for 2s after using Nine Lives.
Heal for an additional 400 with Nine Lives.
Increase the duration of Prowl by 0.5s.
Heal for 80 every 1s while Prowl is active.