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 - Every time you are damaged by a god you gain a stack that provides 3 Physical and Magical Protections. Stacks up to 7 times, Lasts 6s
PASSIVE - While over 25% Mana, you gain +10% Cooldown Reduction. While under 25% Mana, you gain +50 MP5.
PASSIVE - When you take Magical Damage from Abilities your cooldowns are reduced by 3s. This can only occur once every 30s.