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.
Gain a 200-Health Shield for 3s after activating Ignition.
Heal for 200 after activating Soul Harvest.
Increase your maximum Health by 450.
Gain a 750-Health Shield for 3s after dropping to or below 30% Health.
Reduce your damage taken by 40% while using Juggernaut.