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 25% of the damage Absorbed by Power Siphon.
Heal for 60 for each enemy hit by Calamity Blast.
Generate 3% Power Siphon charge for each enemy hit with Massacre Axe.
Increase your maximum Health by 600.
Reduce your damage taken by 32% for 3s after landing with Shatterfall.
Reduce the damage you take by 20% while at or below 50% Health.