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.
Generate 6% Power Siphon charge for each enemy hit with Massacre Axe.
Gain 18% Power Siphon charge for each enemy hit by Shatterfall.
Heal for 15% of the damage Absorbed by Power Siphon.
Reduce the Movement Speed penalty during Power Siphon by 60%.
Increase your Movement Speed by 6% for each Calamity Charge you have.
Reduce the damage you take by 20% while at or below 50% Health.