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.
PASSIVE - Physical Critical Strikes bonus damage taken is decreased by 40%.
PASSIVE - For 8 seconds after using an ability, your next basic attack will deal an additional 10% damage. The effect can only occur every 3 seconds.
PASSIVE - Your Basic Attacks benefit from an additional 20% Physical Penetration.
PASSIVE - Protects you from a single hard Crowd Control effect once every 70 seconds. When this occurs, you gain 1s of Crowd Control immunity.