A member of the group The Imperial Guard.
The Imperial Guard is a legion of superpowered champions who protect and defend the Shi'ar galactic empire.
Its members are drawn both from the Shi'ar and other alien races governed by the Shi'ar. The majority of the Imperial Guard's members are known as Borderers. They assist the governors of conquered planets in enforcing the Shi'ar imperial law.
The Imperial Guardsmen however belong to the elite corps that protects the ruler of the empire, known as the Majestor or Majestrix, and executes his or her orders.
Fader is only three feet, three inches tall. He wears a light armour and uses a spazzgun in battle. He can fly undetected, "hiding" in different parts of the optic spectrum, including ranges invisible to the eyes of particular species. He is effectively invisible but can not mask his scent or sounds emitting from his body. He seems to be a poor marksman, failing such a large target as the Beast.
Fader and Monstra were sent to invade the Xavier Mansion. Fader was taken out by the Beast who could smell his scent and heard him breathe. Monstra seemed very concerned for his health, indicating they were close friends or lovers.