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.
Reduce the Cooldown of Dark Siphon by 5s if it fails to hit a target.
Reduce the damage you take by 10% for 5s after hitting an enemy with Dark Siphon.
Heal for 120 for each enemy hit with Obliteration.
Reduce the damage you take by 4% for 3s after activating Tendril.
Increase the Healing received from Dark Siphon by 100 health.
Your Dark Siphon now deals an additional 10% of the target's maximum Health as damage over 1.5s.