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 first ability cast gains 20% Physical Penetration. This can only occur once every 5 seconds.
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