Dolphin starter that ends as a Water/Psychic. The dolphin grows and develops a psychic aura and gem in its forehead as it grows.
Grass monkey that ends up as a huge Grass/Rock gorilla. Self explanatory growth this time.
The fire starter is a fire pixie. (long shot, lost some creativity here). The second stage is a prankster kind of pokemon. Becomes more malicious as it evolves. Eventually turns in to a Fire/Dark demon-like pokemon.
Thoughts? --- Currently playing: Diablo 3. Greninja or Delphox?