Cull Obsidian is the bruiser of Thanos' (Josh Brolin) Black Order as the larger-than-life villain packs a considerable punch, but the alien-like character is unrecognizable next to Terry Notary ...
Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast prehistoric trade networks that once cut across western North America.