So you get to open up your very own pokemon gym, but all your pokemon must be one type (dual types are fine, one should adhere to your theme). What's it going to be?
I'd probably go with ghost. I'd have more fun than something boring and safe like dragon. Poison and bug would be fun, too.
I'm playing LeafGreen with only bugs right now and it's fun. I'll probably do more monotype runs in the future.
Edit: prolly shoulda posted in "Nintendo Other". Oooooooops.