Stotox evolves into Bouldox starting at level 26, which evolves into Crystox starting at level 38.
Stotox's bodies are rough, jagged rocks. They have four small, purple legs, and a pair of glowing red eyes. A pair of sharp, purple spines is on its back.
A Stotox's bite is highly venomous, and its jaw strength is quite commendable. Stotox have been seen biting rocks around their nest to poison them and deter predators from eating them. Some say Stotox can spew a strong, poisonous silk from its mouth to ensnare prey, but as there is currently no official proof, this should be taken with a grain of salt.
Stotox are foolhardy Pokemon, and enjoy picking fights with others for sport. As they are immune to their own poisons, these scuffling matches rarely result in serious injury. They are also very independent, learning to live alone and guard their territory at a young age. Though friendly towards other Stotox, Bouldox, and Toxitone, these Pokémonare ferocious to anything else that enters its cave, from the smallest Hamstar to a human being.
Stotox live in dry, dark places like caves.
Hikers and tourists sometimes come back after a mountainous walk feeling dizzy and faint. This is due to them stepping on a Stotox's poisonous spike.