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 200 for each enemy hit by Heavy Blade.
Reduce the Cooldown of Combat Trance by 0.8s for each enemy hit by Heavy Blade.
Reduce the Cooldown of Crouching Tigron by 0.8s for each enemy hit by Heavy Blade.
Increase your maximum Health by 150.
Increase your maximum Ammo by 3.
Heavy Blade now explodes on reactivation instead of recalling, but the initial throw does reduced damage.