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 Crippling Arrow by 3s.
Reduce the Movement Speed penalty while drawing your Longbow by 20%.
Heal for 140 after hitting an enemy with Crippling Arrow.
Hitting an enemy with Crippling Arrow reduces the Cooldown of Rapid Shot by 2.4s.
Reduce your active Cooldowns by 30% when you get an Elimination.
Increase the rate at which your Longbow charges by 25%.