Seviper is a purplish Pokémon with golden "plates" on its body. both of its fangs are red but on side of its face is light purple while the other side is a darker purplish color. It's eyes are also red and the also have gold "plates" on them.
Seviper first appeared in A Tail with a Twist. A Seviper is attacking other Pokémon to steal its food. Soon when the gang has lunch, May's Torchic is attacked by a wild Seviper and also gets its food taken. Ash's Treeko sees it attacking Torchic and tries to help. After Treeko attacked it a few times, the Seviper runs away. Later in the episode Jessie, James and Meowth are having lunch. Once they ran out of food, Jessie gets a secret rice roll she was hiding from James and Meowth and while they where fighting over it, the Seviper steals, and eats it. Jessie gets mad and, when the Seviper bites her hair, Jessie became very angry and attacked it. She almost killed it, but James and Meowth told her to catch it, so she did.