Culumon

Culumon (クルモン)
A small Digimon shrouded in mystery that is unable to evolve or attack, unlike other Digimon. As it is friendly and loves to play, it will appear from somewhere whenever there is fun to be had. It has a habit of adding "Culu" to the end of its sentences. Rumor has it that it possesses the ability to help other Digimon to evolve.

Etymology
Culu: A corruption of kuru, from Kābankuru (カーバンクル), meaning "Carbuncle", a mythical creature that was allegedly sighted in Latin America which was said to have a shining jewel on its forehead.

Evolves To:
This Digimon has no Evolutions.