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.
Reduce the damage done by any enemy you are linked to with Spirit Link by 16%.
Increase your maximum Ammo by 2.
Reduce the damage you take by 4% for 2s for each ally hit with Chain Heal. This effect stacks.
Reduce the Cooldown of Envelop by 0.6s.
Increase the maximum amount of damage mitigated by Envelop by 28%.
Spirit Link's Cooldown is increased to 7s and it now only lasts for 4s, but its base effects are tripled.