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 30% of a Calamity Blast charge for each enemy hit with Massacre Axe.
Heal for 300 for each enemy hit with Shatterfall.
Heal for 180 for each enemy hit by Calamity Blast.
Receive 10% increased Healing while at or below 50% Health.
Each Calamity Blast deals an additional 100 damage.