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.
Heal for 130 after using Grumpy Bomb.
Heal for 45 for each Sticky Bomb you Detonate.
Reduce the damage you deal to yourself with Sticky Bombs by 60%.
Heal for 400 for each enemy hit with Poppy Bomb.
Increase your maximum Ammo by 4.
Increase the radius of Sticky Bombs' explosions by 20%, but reduce maximum Ammo count by 2.