The Rune Siphon is a spectral entity composed of swirling, glowing runes that constantly shift and reform. It can phase through solid objects to reach hidden runic inscriptions. Its form is semi-transparent, allowing it to blend into shadows, and it emits a faint, eerie hum when extracting runic energy. The Siphon grows more powerful with each rune it consumes, its glow intensifying as it absorbs more magic.

The Rune Siphon serves as the Arcane Seekers' primary tool for extracting ancient runic knowledge. It infiltrates sacred sites, consumes runic magic, and returns the extracted knowledge to Katarina Novak. Its actions often leave behind desecrated ruins and weakened magical protections, furthering the faction's goals while disrupting their enemies.