Ven's Team

Raltz ("It uses the horns on its head to sense human emotions. It is said to appear in front of cheerful people." Ven is pretty much always cheerful)
Ninjask (Ven likes fast, and Ninjask is all the fast)
Shedinja (By association with Ninjas. Plus, he would laugh as people would struggle with Wonder Guard)
Zoroark (Misdirection is the best tool)
Wobbuffet (Because Wobbuffet)
Snorlax (Sleep is good too)