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 60 every 1s while Agility is active.
Increase your maximum Ammo by 15.
Increase your Healing received by 15% while firing your SMGs.
Increase your maximum Health by 100.
Heal for 640 after hitting at least one enemy with Skewer.