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 200 after using Presence.
Increase your maximum Health by 200.
Heal for 180 for each enemy hit with Valor.
Generate 3 Ammo for each enemy hit with Valor.
Generate 3 Ammo after using Grace.
Hitting an enemy with Heirloom Rifle increases your Heirloom Rifle damage against that enemy by 7% for 3s, stacking up to 5 times.