The Resonance of the Primordial Word

A translucent, multi-faceted crystal roughly the size of a human heart that floats in a fixed orbit around the wielder. It is composed of solidified arcane ether, shimmering with a spectrum of colors that do not exist in the natural world. Faint geometric symbols appear and vanish within its depths, and it emits a low, harmonic hum that vibrates in the teeth of those nearby.