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.
Heal for 240 for each enemy hit by Calamity Blast.
Generate 10% Power Siphon charge for each enemy hit with Calamity Blast.
Heal for 10% of the damage Absorbed by Power Siphon.
Heal for 200 for each enemy hit with Shatterfall.
Reduce the damage you take by 20% while at or below 50% Health.