Click the "Add to a List" button above to add this item to your wishlist or a custom list. In My Lists you can customize your notification preferences and check availability for each item in each of your lists. The Heretic Knives NYX is a sleek, medium-length OTF knife named after Nyx, the Greek Goddess of Night. It's an American-made pocket knife that features a durable MagnaCut steel blade and a user-friendly thumb slide for automatic opening and closing. The NYX is elegant, menacing, and extremely well-built, making it a perfect choice for those in the market for an OTF that marries hardcore durability with gentlemanly style.