The Rune Devourer is a semi-corporeal entity composed of swirling, shadowy energy infused with fragments of consumed runes. It possesses the ability to absorb and manipulate arcane symbols, using their power to enhance its own abilities. The entity is nearly impervious to physical attacks but can be weakened by sacred rituals and protective wards.

The Rune Devourer serves as the Arcane Seekers' primary tool for extracting and consuming ancient knowledge. It infiltrates sacred sites and archives, devouring runes and symbols to uncover the secrets of the Golem's creation, often leaving destruction in its wake.