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.
Increase your Movement Speed by 15% and gain {scale=5|5}% Lifesteal for 2s after falling to or below 40% Health.
Increase the Healing received from Dark Siphon by 50 health.
Heal for 180 for each enemy hit with Obliteration.
Consuming Darkness stacks Heals you for an additional 30 per stack.
Increase your maximum Health by 250.