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 - Your Critical Hits provide you with 10% Physical Penetration for 4s.
AURA - Enemy gods within 55 units have their Physical Protection reduced by 10%.
PASSIVE - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.