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.
Each Soul Fragment gathered Heals you for 75.
Reduce the time it takes to spin up your Hellfire Gatling by 12%.
Reduce the Cooldown of Ignition by 1.2s.
Heal for 200 after activating Soul Harvest.
Increase your maximum Health by 450.
All your living allies are Healed for 1.5% of their maximum Health for each Soul Harvested.