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 the Healing Spirit Links provides every 1s to your linked friendly target by 100 Health.
Heal for 40 every 1s while Spirit Linked to an ally.
Reduce the damage done by any enemy you are linked to with Spirit Link by 16%.
Heal for 100 when you use Envelop.
Increase your maximum Ammo by 4.
Spirit Link's Cooldown is increased to 7s and it now only lasts for 4s, but its base effects are tripled.