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 - Provides a Health Shield that gains stacks every 2s. Shield only stacks if you have not taken or dealt damage in the last 5s. Each stack provides 10% of 100 Health +5 Per Level. The full shield will regenerate after 20 seconds.