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 Charge you detonate generates 2 Ammo.
Increase your Ultimate charge rate by 35%.
Increase your maximum Ammo by 6.
Regenerate 6 Ammo every 0.5s while channeling Restore Soul.
Reduce the Cooldown of Rend Soul by 0.7s.