Weezing

The second stage of evolution for Koffing. Over many years, two Koffing can fuse into a Weezing. In "Dig Those Diglett," James' Koffing evolve into the even more foul-smelling Weezing. James once remarked that his toxic Pokemon, "smells like old sneakers soaked in stinkbug juice, mixed with some rotten eggs and a dead fish with just a touch of skunk fumes!"

First appearance: Episode 31—"Dig Those Diglett"