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 maximum Health by 50.
Increase the area of effect of all your explosions by 10%.
Increase your Movement Speed by 15% for 2s after activating Hail of Bombs.
Increase the explosion radius of Hail of Bombs' explosives by 30%.
Generate 1 ammo for every -1000 explosive damage done.