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 - After healing yourself from an ability, you gain 30% movement speed, 15 Physical Power, and 30 Magical Power for 4 seconds. This cannot occur more than once every 10 seconds.
AURA - Enemies within 55 units have their Attack Speed reduced by 25%.