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 Ammo by 3.
Increase the Health of Dead Ringer by 300hp.
Increase your maximum Health by 200.
Generate 2 Ammo for each enemy hit with Blast Back.
Increase the duration of Saati's invisibility by 0.375s after deployment of Dead Ringer.