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 the area of effect of all your explosions by 10%.
Generate 1 ammo for every -400 explosive damage done.
Heal for 150 for each use of Explosive Personality.
Heal for 10 for each enemy hit by the initial and secondary explosions of Cluster Grenade.
Increase your Movement Speed by 30% for 2s after activating Hail of Bombs.
Reduce the Cooldown of Explosive Personality by 5s, but reduce your Movement Speed by 15%.