Diamondback Attributes Gives one guaranteed critical hit for each building destroyed with your sapper attached or backstab kill -15% damage penalty No random critical hits Price Genuine 22.33 - 22.44 Refined Unique 0.05 Refined Uncraftable 0.22 Refined Strange 65 Refined Collector's 46 - 68 Keys Classes Spy Tags Weapon Secondary Blueprints Items Chance 100% Items Chance 25% Unique Vintage Strange Genuine Collector's Haunted Unusual Unique Vintage Strange Genuine Collector's Haunted Unusual $0.99