An Angel Digimon said to appear when an unprecedented crisis descends upon the Digital World, coming into being through the inharmonious pairing of an Angel and a Dark Angel Digimon in DNA Digivolution. It faces this predicament by controlling the might of both angel and dark angel clans summoned through gates from another Digital World. Mastemon accomplishes this through a temperament that has earned it the moniker of the “Tactician from Another World,” allowing these normally hostile factions to work together. It is of a single mind despite being a DNA Digivolution of two conflicting creatures, controlling both light and dark energies and lending power to Digimon in various situations. It will even attack formidable foes on its own. Mastemon uses its special move Holy Desire to destroy evildoers with arrows of light fired from its right arm, Dark Despair to grab a foe with its left arm and delete them by crushing their entire DigiCore, and Chaos Degradation to produce a gate from the fusion of light and dark energies in both arms that consigns the enemy to oblivion in another dimension.