item.tf

Diamondback

Backpack.tf

Genuine: 15 - 15.11 Refined
Unique: 0.05 Refined
Uncraftable: 0.05 - 0.11 Refined
Strange: 25.88 - 26.22 Refined
Collector's: 12 - 15 Keys

Diamondback
Gives one guaranteed critical hit for each building destroyed with your sapper attached or backstab kill -15% damage penalty No random critical hits