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 20% of the damage Absorbed by Power Siphon.
Generate 6% Power Siphon charge for each enemy hit with Massacre Axe.
Generate 20% of a Calamity Blast charge for each enemy hit with Massacre Axe.
Reduce your damage taken by up to 20% based on the number of Calamity Blast charges you have stored.
Heal for 200 for each enemy hit with Shatterfall.
Reduce the damage you take by 20% while at or below 50% Health.