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 10% of the damage Absorbed by Power Siphon.
Reduce the Movement Speed penalty during Power Siphon by 15%.
Reduce the Cooldown of Shatterfall by 1.2s for every 1s spent channeling Power Siphon.
Generate 9% Power Siphon charge for each enemy hit with Massacre Axe.
Increase your Movement Speed by 10% for each Calamity Charge you have.
Shatterfall Stuns enemies hit for 1s, but no longer Slows.