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.
Heal for 210 after hitting an enemy with Crippling Arrow.
Heal for 400 after using Withdraw.
Reduce the Cooldown of Withdraw by 1.2s.
Reduce your active Cooldowns by 20% when you get an Elimination.
Increase your Movement Speed by 21% for 3s after using Withdraw.
Increase the rate at which your Longbow charges by 25%.