The Echoing Gjallarhorn exists as pure reverberating sound given semi-solid form through altered perception, appearing to howling warriors as fractal sound waves crystallized into a horn of impossible geometry—its spiral chambers containing infinite recursive depths. With each league, it grows more complex, each communal howl adding harmonic layers that create new geometric patterns in its structure. Only those who have participated in the sacred howl can perceive it, and it resonates at frequencies that bypass rational thought to speak directly to the berserker consciousness.

The Gjallarhorn serves as the living acoustic record of all howls across all eight trials, each warrior's voice adding to or detracting from the cosmic resonance that will ultimately determine Valhalla's gathered. Its echoes sort the worthy from the forgotten through harmonic analysis beyond conscious understanding.