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.
Reduce your damage taken by up to 20% based on the number of Calamity Blast charges you have stored.
Generate 10% of a Calamity Blast charge for each enemy hit with Massacre Axe.
Heal for 5% of the damage Absorbed by Power Siphon.
Generate 9% Power Siphon charge for each enemy hit with Massacre Axe.
Increase your Movement Speed by 10% for each Calamity Charge you have.
Reduce the damage you take by 20% while at or below 50% Health.