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.
Increase your maximum Health by 600.
Heal for 180 for each enemy hit by Calamity Blast.
Heal for 15% of the damage Absorbed by Power Siphon.
Heal for 300 for each enemy hit with Shatterfall.
Reduce the damage required to generate a Calamity Blast charge by 200.
Reduce the damage you take by 20% while at or below 50% Health.