I had Chargabug and Dartrix to deal with Wishiwashi, so thats why I didnt have too much trouble; however, it was very powerful. And my Wishiwashi is also very powerful xD
I just found out that my Pelbear has Klutz instead of Fluffy, which is partly why I had a lot of trouble with Mimikyu. Also its typing was very troubling for me because I had nothing super effective.
I agree the Mimikyu character was epic. Did you look at the images on the wall? It just demonstrates how sad Mimikyu really is.