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 your Movement Speed by 8% for 4s after using Fire Bomb.
Decrease your damage taken by 4% for 3s after using Nade Launcher.
Reduce the Cooldown of Fire Bomb by 3s.
Increase your maximum Ammo by 8.
Activating Fire Bomb heals you for 400 over 2s.
Hunter's Mark has 2 charges and grants its benefits to allies.