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.
Gain a 1250-Health Shield for 3s after dropping to or below 30% Health.
Heal for 100 after activating Soul Harvest.
Gain a 150-Health Shield for 3s after activating Juggernaut.
Heal for 600 for each champion hit by Juggernaut.
Increase your maximum Health by 600.
Reduce your damage taken by 40% while using Juggernaut.