Kecleon

Kecleon is an unreleased Normal-type Pokémon from the Hoenn region. It does not evolve into or from any other Pokémon.

Trivia

 * After Chikorita Community Day on September 22, 2018, Ditto appeared in abundance disguising itself as Kecleon for players in Singapore . both it's name and CP were replaces with "???".
 * For players in other parts of the world, Ditto disguised itself as Meltan under the same conditions as Kecleon.