Ajak was a member of the subgroup of Eternals known as the Polar Eternals. He was born in the area of Polaria, Siberia. His parents were Rakar and Amaa, and he had a brother named Arex. He was an archaeologist with an advanced knowledge of archaeology.

Levitation: Ajak is able to levitate (like all Eternals) by mentally manipulating gravitons(gravity particles) around him.

Flight: He is able to fly at approximately 650 miles per hour (1045 kph), an average rate of speed for his kind.

Increased Stamina: Does not tire from physical exertion due to his highly advanced metabolic processes.

Molecular Manipulation: Can also mentally manipulate molecules, an ability shared by a number of Eternals. As a Third level adept on a five level scale, Ajak can rearrange the molecules of a mass of up to 990 pounds (450 kg), the period of manipulation lasting up to a minute. He must have approximately an hour of recovery time before using this ability again.

Cosmic Life-Force: Like all Eternals, who long ago were endowed with a self-regenerating cosmic life-force, Ajak ages incredibly slowly, marking his lifetime in centuries rather than years. His powers of regeneration make him virtually impervious to harm. Only and injury of such magnitude that it disperses a major portion of his bodily molecules could cause death. The act of molecular manipulation causes an enormous drain on his cosmic life-force, rendering him more vulnerable than normal.