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 30.
Increase your Reload Speed by 35%.
Increase your maximum Health by 750.
Heal for 150 for each champion hit by Juggernaut.
Heal for 200 after activating Soul Harvest.
Reduce your damage taken by 40% while using Juggernaut.