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 - On leveling up, heal 15% of your Maximum Health and Mana over 3s.
PASSIVE - On damaging an enemy god, once per ability, gain 2 Magical Pen for 10s, stacks up to 3 times.