item.tf

Razorback

Backpack.tf

Vintage: 3.11 - 3.33 Refined
Unique: 0.05 Refined
Uncraftable: 0.11 Refined
Strange: 10.22 - 10.33 Refined
Collector's: 51 - 53 Keys

Razorback
Blocks a single backstab attempt -100% maximum overheal on wearer