Od

"Od, the fuel that sustains my Arts, that keeps my home safe, that keeps my heart pumping."

The common name for the tarnished form of Odraka. Tarnished Odraka, or Od has been Harmonized and Adapted specifically for mortal use. Od is the essence of mortal souls and the fuel for Arsai.

Od is Odraka that has had its Luster tarnished (Intent&Energy) and its Edges corroded (Reactivity)

It is safe to assume anytime Od is mentioned or being handled that it is tarnished Od being refrenced, except in the case of the Vyapak Arsai and the Weaving Arsa which exclusively use Odraka.