|Abilities||Shed Skin, Infiltrator (Hidden)|
|Episode First Shown in||A Tail With A Twist|
|First Known Owner||Jessie|
|First Game Appeared in|
|National Dex Number||336|
Seviper does not evolve.
Seviper has a mostly dark blue body. It has red fangs, red eyes, and a red tail tip. It has a small purple line near the end of its tail, and it hsa several gold plates on its back. It has several purple paterns on its back, and its lower jaw is gold-colored.
- Khyber the Sevpier was caught by Dakota Rex in Foreign Fighters in the Search for Mew. It appeared again in The Collector. Its ability is Shed Skin.
- A coordinator's Seviper appeared in Vs. Spinda.
- Lucy's Seviper appeared in Vs. Battle Pike.
- Crimson's Seviper appeared in Breaking the Team. It worked together with Azure's Zangoose.
- Jessilina's Seviper debuted in Vs. Kricketune and Roselia.
- Dream Seviper used by Zombie Rocket grunts appeared in Crisis in the Dream World!
- Poison Tail
- Poison Fang
- Venom Drench
- Night Slash
- Gastro Acid
- Poison Jab
- Wring Out