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 - Enemies hit by your abilities have 40% reduced healing for 5 seconds.
PASSIVE - Restore 1% of your Maximum Mana upon damaging an enemy god with an ability, once per god.
PASSIVE - On damaging an enemy god, once per ability, gain 2 Magical Pen for 10s, stacks up to 3 times.