Lots of Pokemon are gimmicks. Some of them are cool gimmicks, but they're still gimmicks. A few examples that come to mind are Ditto, Unown (the mystery around them intrigues you for about 10 minutes, then they do absolutely nothing but take up space in your PC box), and Castform come to mind.
That said, I would have to say that in my opinion the most gimmicky Pokemon are Plusle and Minun. They're super cute, for sure <3 But they were clearly created as a gimmick to show off the double battle feature. When teamed up in a double battle they're average at best, but individually they're not very useful, sadly.
That said, I would have to say that in my opinion the most gimmicky Pokemon are Plusle and Minun. They're super cute, for sure <3 But they were clearly created as a gimmick to show off the double battle feature. When teamed up in a double battle they're average at best, but individually they're not very useful, sadly.