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 - If you drop below 40% Health, you gain a shield equal to 25% of your maximum Mana. This shield lasts 6s. This effect can only occur once every 90s.
PASSIVE - For each enemy God within 55 units of you, you gain a stack of 4% Damage Mitigation. This caps at 3 stacks.