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.
Activating Fire Bomb heals you for 500 over 2s.
Heal for 180 for each enemy hit with Nade Launcher.
Increase your maximum Health by 250.
Reduce the Cooldown of Fire Bomb by 0.6s.
Reduce the damage you deal to yourself with Fire Bomb by 20%.
Nade Launcher has 3 charges, but reduce the damage of each to 650.