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 0.05 - 0.11 Refined Strange 50.22 - 50.33 Refined Collector's 12 - 15 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