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.
Reduce the Cooldown of Dark Siphon by 4s if it fails to hit a target.
Increase your maximum Health by 150.
Reduce the cooldown of Tendril by 0.6s.
Increase the Healing received from Dark Siphon by 150 health.
Your Dark Siphon now deals an additional 10% of the target's maximum Health as damage over 1.5s.