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 - When you are hit by an ability that deals Magical damage, gain 5% Magical Damage Mitigation for 5s. ICD 12s.