Kraubs are creatures created by Metron for Stevonian war purposes. Kraubs are small, crab-like creatures with six legs and a very hard shell. They have two pincers, one very small, and a larger one, which is almost as big as it's body. This large pincer has five hard fingernail-like parts that help the Kraub keep it's grip. There is also a shallow "throat" in the larger pincer. It isnt an actual throat, but it actually has three glands deep inside that spray acidic poison, which is said to be able to eat through anything, besides other Kraubs, because they are immune to the substance.