Ebonwumon

Ebonwumon is the oldest of the Digimon Sovereigns, resembling a turtle with a second snake-like head and is the Guardian of the Northern Hemisphere of the Digital World. He has an affable personality. The Japanese name is Xuanwumon, which is named for the Chinese astronomical name for the northern quadrant of the sky, Xuanwu, which means "somber warrior." The Japanese derivative is Genbu. The Chinese often portray Xuanwu as a turtle, and the Japanese copied this tradition, as seen in the design of Ebonwumon. To play him in the card game, you must discard either of these three Digimon from the Digimon Box: Kumbhiramon, Vajramon, and Vikaralamon. Ebonwumon is voiced by Dave Wittenberg. Notably, he's left head speaks with an Irish accent while the right head speaks with a Scottish accent.

Attacks

 * Phantom Mist: Covers the area with a hallocinogenic mist that causes his opponent to see things & go insane.
 * Black Hail

Digimon Adventure 02
Although Ebonwumon neither appeared nor was mentioned in the series, he was one of the Harmonious Ones (the name of the Sovereigns in this series), who, together with his partners was defeated by the Dark Masters. They were released when the DigiDestined used the powers of their crests. When Ken Ichijouji became the Digimon Emperor, they were sealed again and so created the D-3 Digivice, which they gave the new DigiDestined to fight against Ken.

Digimon Tamers
Ryo and Cyberdramon encountered Ebonwumon in Baihumon's territory, which he guarded while Baihumon was fighting the D-Reaper, however then reappeared wounded. Ebonwumon later appeared again to free the Light of Digivolution (aka Calumon), so that all Digimon in the Digital World could evolve and fight against D-Reaper. In the final battle against the D-Reaper, Ebonwumon assisted Azulongmon, Baihumon, and Zhuqiaomon into dragging the Cable Reaper back into the Digital World during Operation: Doodlebug, thus saving the Tamers.