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 200.
Reduce the damage you deal to yourself with Sticky Bombs by 20%.
Heal for 130 after using Grumpy Bomb.
Increase your maximum Ammo by 4.
Heal for 75 for each Sticky Bomb you Detonate.
Reduces the time it takes for Grumpy Bomb to explode by 40%.