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 60.
Reduce your damage taken by 10% for 3s after activating Soul Harvest.
Gain a 200-Health Shield for 3s after activating Ignition.
Heal for 600 for each champion hit by Juggernaut.
Increase your maximum Health by 450.
All your living allies are Healed for 1.5% of their maximum Health for each Soul Harvested.