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 4s if it fails to hit a target.
Reduce the damage you take by 10% for 1s after hitting an enemy with Dark Siphon.
Generate 4% Ultimate charge for each enemy hit by Obliteration.
Reduce the Cooldown of Dark Siphon and Obliteration by 0.4s after activating Tendril.
Reduce the cooldown of Tendril by 3s.