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 45.
Reduce the Cooldown of Ignition by 1.2s.
Reduce the time it takes to spin up your Hellfire Gatling by 12%.
Heal for 600 for each champion hit by Juggernaut.
Heal for 300 after activating Soul Harvest.
Reduce your damage taken by 40% while using Juggernaut.