Bonk! Atomic Punch Description Drink to become invulnerable for 8 seconds. Cannot attack during this time. Damage absorbed will slow you when the effect ends. Price Vintage 2.44 - 2.66 Refined Unique 0.05 Refined Uncraftable 0.05 - 0.11 Refined Strange 15.33 - 16.88 Refined Collector's 49 Keys Classes Scout Tags Weapon Secondary Blueprints Items Chance 17% Unique Vintage Strange Genuine Collector's Haunted Unusual Unique Vintage Strange Genuine Collector's Haunted Unusual $0.99