Shades (Ephemeral Predators)

These monsters are large, dark, wolf-like creatures. They are slightly transparent with black fur, glowing white eyes, and teeth made from ghost crystal. They can attack both physical and intangible creatures, but can also walk through tangible substances. The only way to defend against them is with things made from the aforementioned ghost crystal, with things made from intangible substances, or with splash potions. If these limitations make things too hard, gold weapons may also be an option. When killed, they would drop ghost crystals and an undetermined rare item.