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.
Heal for 240 for each enemy hit with Obliteration.
Increase your maximum Health by 200.
Reduce the damage you take by 10% for 1s after hitting an enemy with Dark Siphon.
Increase your Movement Speed by 8% for 1s after hitting anything with Deadly Scythe.
Increase the Healing received from Dark Siphon by 200 health.