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 Spirit Linked to an ally.
Increase your maximum Health by 250.
Increase your maximum Ammo by 10.
Reduce the damage done by any enemy you are linked to with Spirit Link by 4%.
After taking -125 damage, your next use of Chain Heal does not cause it to go on Cooldown.
Increase the range of Chain Heal bounces by 40%.