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 damage you take by 10% for 5s after hitting an enemy with Dark Siphon.
Increase your maximum Health by 50.
Reduce the Cooldown of Dark Siphon by 1s if it fails to hit a target.
Consuming Darkness stacks Heals you for an additional 30 per stack.
Reduce the cooldown of Tendril by 3s.