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 the travel distance of Whirl by 16%.
Increase your Movement Speed by 15% for 2s after using Whirl.
Increase your maximum Health by 200.
Heal for 400 after using Counter.
Increase your Movement Speed by 22% while Billow is active.
Heal for 15% of your maximum Health per second while using Billow.