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.
Every Soul Orb stack you detonate increases your Movement Speed by 1% for 4s, up to a maximum of 15%.
Increase your Movement Speed by 8% while Shadow Travel is active.
Heal for 200 every 1s while using Shadow Travel.
Every Soul Charge you detonate generates 4 Ammo.
Increase the Healing done by Rend Soul by 40%.