their a ditto, being able to transform into anything at anytime, it's a trickster/prankster, it's non-transformed body is a pink and slimy human-shaped blob, and no matter what ditto is transformed into, it'll always have the same face
it only knows transform
it's name is ditty
it's non-transformed body is kinda soft and cuddly, it's body is hollow, so anybody can see what it ate when it isn't transformed
and ditty is always happy
it's transformed often, so it's rare to see ditty not transformed