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.
Generate 2 Ammo for each enemy hit by Broadside.
Increase your maximum Ammo by 1.
Reduce the Cooldown of Harpoon by 0.4s for each enemy hit by Broadside.
Increase your maximum Health by 250.
Heal for 250 for each enemy hit by Broadside.
Harpoon no longer has a Cooldown, but no longer Slows enemies hit.