Khaos-Aethel, the First Sundering

A massive, six-foot blade that appears to be a jagged tear in the fabric of reality. The blade itself is composed of shifting obsidian-like chaos matter, with a core of blinding white light that pulses like a dying star. It has no physical guard; instead, a swirling vortex of gravity surrounds the hilt, pulling in loose dust and light. The grip is wrapped in the cured hide of a planar kraken, and the pommel is a single, unblinking eye carved from a shard of the first mountain.