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 Whirl by 3s after using Billow.
Increase your maximum Health by 50.
Reduce the Cooldown of Whirl by 1s for each enemy it hits.
Increase the travel distance of Whirl by 32%.
Increase your Movement Speed by 55% while Billow is active.
Heal for 15% of your maximum Health per second while using Billow.