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 300 for each enemy hit with Obliteration.
Increase your Movement Speed by 5% and gain {scale=5|5}% Lifesteal for 2s after falling to or below 40% Health.
Increase the Healing received from Dark Siphon by 250 health.
Gain a 75 Shield for 5s after activating Tendril.
Increase your maximum Health by 150.