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 20% while at or below 40% Health.
Increase your maximum Health by 50
Increase your Movement Speed by 24% while Rune of Travel is active.
Increase the duration of Rune of Travel by 3s.
Gain 40% Lifesteal while at or below 40% Health.
Increase your Ultimate charge rate by 15% and enemies at or below 65% Health are Revealed to you.