Read more about Mervamon at: Wikipedia

Official Site: Toei Animation

The are a group of twelve Mega-level Shaman Digimon modeled after the Roman version of the Twelve Olympians, the "Dii Consentes". The group is primarily a facet of the Digimon Card Game, although Merukimon is a major character in Digimon Data Squad anime and the four then revealed members appeared in the game Digimon World Data Squad. Neptunmon, Mervamon, and Apollomon appear in Digimon Xros Wars, although not stated as members of the Olympus Twelve.

The Olympus Twelve possess power rivaling that of the Royal Knights, the guardian deities of the Net, and although they defend the same domain, they are shadowy beings who maintain a neutral standpoint towards the incidents that arise within the Digital World.

Only six members of this group have been identified thus far.

Mervamon has not been a contender in any CBUB matches.