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 your damage taken by 12% for 3s after activating Ignition.
Gain a 1000-Health Shield for 3s after dropping to or below 30% Health.
Heal for 300 for each champion hit by Juggernaut.
Reduce your damage taken by 40% while using Juggernaut.