Black Digitron (ブラックデジトロン, Burakku Dejitoron) is a mysterious secretion that is said to influence the evolution of a Digimon into a darker colored subspecies. In recent years, it has been confirmed that if it is mixed in with someone in some form or other, they will temporarily take on a black appearance, and during that time, their power will increase.
In the case of Black Gaogamon and Black Mach Gaogamon, the influence of Black Digitron seems to have lowered their speed and agility, but increased endurance. Its introduction into Omegamon Alter-S caused it to lose its sense of self, leaving it in a berserk state.
Digimon with Black Digitron