Duosion

Duosion  is a  type Pokémon introduced in  Generation 5. It is known as the  Mitosis Pokémon.

How to Obtain
Duosion can be found inside the Mausoleum Of Origins. [Grass Patches] Solosis can also be found there too

Solosis evolves into Duosion when it levels up to level 32.

Evolution
Solosis evolves into Duosion at level 32, and into Reuniclus at level 41.