This tactical dagger was developed by the "Echo Division" 🎛️, a black-ops unit specializing in acoustic warfare, during the 2277 "Silent Siege" campaign. Its blade is forged from the femur of a Gigantopithecus 🦍, a prehistoric ape that was cloned and genetically modified to produce bone with natural resonant properties. The blade’s wave-like pattern is not decorative—it amplifies sound waves, creating a micro-shockwave on impact that can disable enemy electronics or rupture eardrums. The handle’s modular, grid-like design allows it to be fitted with different "cores," including a sonic disruptor or a neurotoxin injector.

However, the weapon carries a dangerous side effect. The Gigantopithecus’s DNA, which was preserved in the bone, occasionally reactivates, causing the dagger to "grow" tiny, needle-like bone spurs that pierce the user’s palm. Those who wield it for more than two weeks begin to experience primal rage, hallucinating the ape’s memories of fighting predators in the Pleistocene jungles 🦖. Worse, the sonic shockwaves can inadvertently trigger avalanches or structural collapses if used in enclosed spaces. During a 2278 raid on a mountain bunker, a single strike caused the ceiling to collapse, killing three soldiers.

The Echo Division attempted to stabilize the DNA, but the bone’s resonant properties were lost in the process. The remaining daggers were decommissioned, but one was stolen by a mercenary who used it to assassinate a corporate CEO. Today, it circulates on the black market, where it is known as the "Shockwave Bone." It is said that only those who can control their primal instincts can wield it without being consumed by its rage.