Black crystal
From DALpedia
(Redirected from Dark Glass)
Black Crystal, also known as Dark Glass, is reflective glossy onyx like substance that is usually cut into diamond shapes. Its primary use is as a catalyst for inter-dimensional teleportation and summoning spells, as evidenced by Draven's massive demon summoning attempt in Chapter 8. It is also one of the primary materials for Horus' Dark Glass Cannon.