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.
Hitting an enemy with Crippling Arrow reduces the Cooldown of Rapid Shot by 3s.
Increase your maximum Health by 50.
Increase your Movement Speed by 3%.
Reduce the Cooldown of Withdraw by 1.7999999999999998s.
Reduce the Cooldown of Rapid Shot by 3s.
Increase the rate at which your Longbow charges by 25%.