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 - On damaging an enemy god, once per ability, gain 2 Magical Pen for 10s, stacks up to 3 times.
PASSIVE - On leveling up, heal 15% of your Maximum Health and Mana over 3s.
PASSIVE - Basic Attacks and Abilities gain 15% additional Magical Power against targets below 60% Health.