Dark Masters

The Dark Masters (ダークマスターズ Daaku Masutaazu) are four evil, Ultimate level Digimon that, in the absence of the Chosen Children, took over the Digital World and reformatted much of it into Spiral Mountain, making it easier to conquer.

=Members=
 * Metal Seadramon - He commands legions of aquatic digimon, including many Hangyomon and a particularly scatterbrained Anomalocarimon. He is extremely arrogant about his power, boasting an almost impenitrable defence because of his Chrome Digizoid armor. Unfortunately, he was at a type disadvantage against War Greymon's Dramon Destroyers and was ripped through lengthwise with his Brave Tornado.
 * Pinocchimon - A puppet digimon and very juvenile, he enjoys playing dangerous games and showing an interest in Takaishi Takeru, challenging him to various games at his mansion. He is best known for toting around a .44 Magnum gun and killing several of his minions. He was killed by Yamato's Metal Garurumon.
 * Mugendramon - Extremely calculating and uncaring, he ruled over Multitask City. He had some of the highest offensive power of the group, being able to obliterate entire city blocks with the cannons on his back. Being a dragon type, he also fell to War Greymon's Dramon Destroyers. Despite getting cut to pieces, he managed to escape, jogressing with a wild Chimeramon to become the dreaded Millenniumon who would torment (and stalk) Akiyama Ryou and eventually, after another jogress, become his partner, Monodramon.
 * Piemon - The leader of the Dark Masters, he watches from the top of Spiral Mountain as his comrades are slaughtered by the Chosen Children. He also controls the Nightmare Soldiers, he second in command being a Lady Devimon. He is able to shape shift into various forms and cause elaborate illusions, along with the ability to change his opponents into keychains with his versatile Clown Trick. Being too powerful to kill, Takeru's partner, Holy Angemon seals him away within his Heaven's Gate. His victims are returned from their keychain state by Holy Angemon's Holy Heal.

=Appearances=

Digimon Tamers
Both a Metal Seadramon and Mugendramon are seen among the Ultimate digimon that rally to fight the D-Reaper.

Digimon Adventure V-Tamer 01
A rather quiet Piemon was the partner of Sigma, one of the Alias III.

Digimon Adventure: Anode/Cathode Tamer
The Dark Master, Mugendramon jogresses with a wild Chimeramon to become Millenniumon.

Digimon World
Mugendramon is the final boss of the game. In the second battle and onwards, he becomes stronger, and when defeated is revealed to be another Digimon.

Digimon World 2
Each of the Dark Masters is an obtainable digimon.

Digimon Digital Card Battle
Mugendramon battles you in Infinity Tower's 1st Battle Arena, under Venom Vamdemon. Metal Seadramon and Pinnochimon battle you in Infinity Tower's third Battle Arena, under Piemon. Piemon's deck is centered around three of the four Demon Lords, except Mugendramon.

Digimon Story
Each of the Dark Masters is an obtainable digimon.