Ultimate Aggregor

Aggregor is an Osmosian warlord with lethal absorbing powers. He was introduced in Fame and served as the main antagonist of season one and the first half of season two of Ultimate Alien (Ultimate Kevin later takes his place as the season's main antagonist after the events of The Forge of Creation). His main objective is to get to the Forge of Creation and absorb the powers and abilities of a newborn Celestialsapien (which he refers to as the "Ultimate Prize") so he can become omnipotent. To achieve this goal, he absorbed the abilities of various powerful aliens he captured from the Andromeda Galaxy in order to become strong enough to search for and reassemble the four fragments of the Map of Infinity, the one item which will lead him there.