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.
Heal for 10% of the damage Absorbed by Power Siphon.
Increase your Movement Speed by 4% for each Calamity Charge you have.
Generate 3% Power Siphon charge for each enemy hit with Massacre Axe.
Generate 50% of a Calamity Blast charge for each enemy hit with Massacre Axe.
Heal for 500 for each enemy hit with Shatterfall.
Reduce the damage you take by 20% while at or below 50% Health.