Another vaporeon variant: The Swamp Vaporeon

Swamp vaporeon are wild vaporeon released by their trainers. Their appearance change when they decide to live inside swamps.
The lilipad around their neck and swamp plants don't dissapear when they use acid armor and they use them to trick their prey by acting like normal plants.

The lilipad change with the season, it's green in spring, they have a flower in summer, they turn brown in autumn and they dissapear in winter.