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 300 for each enemy hit with Obliteration.
Consuming Darkness stacks Heals you for an additional 20 per stack.
Reduce the damage you take by 10% for 2s after hitting an enemy with Dark Siphon.
Increase your maximum Health by 100.
Increase the Healing received from Dark Siphon by 200 health.