Osmosian

Osmosians are an alien power. They are possibly a subspecies of human. The name 'Osmosian' is a play on the word "osmosis", the name of the physical process by which a solvent, (i.e. water) diffuses from an area of a high concentration through a semi-permeable membrane into an area of low concentration.

Osmosians are able to absorb, hold, redirect and discharge various types energy through their bodies mostly electricity and lightning. It is apparently ill-advisable for them to absorb raw energy, such as electricity, for Osmosians that have yet to fully mature (which might explain the reason for how Kevin lacked the mastery of transforming into Ben's original ten aliens and resulted in him becoming a fusion of them whereas his future counterpart could freely control his absorbed powers at much greater strength, and it might affect their mind and cause them to become overly aggressive and sociopathic which would expain Kevin's behavior in the original series.). As demonstrated by Kevin in Alien Force, Osmosians and half-Osmosian are also able to absorb the mass and properties of physical materials and grow an armor-like outer skin as durable as the material used to make it and by extention proportionately strengthen and increase the Osmosian's strength and durability to even higher levels. See Kevin's Abilities for more details.

As mentioned in "Escape From Aggregor," when Osomsians absorb the energy from other life forms, they gain that life form's powers. However, they are only able to use only 1/10 of the original creature's powers and abilities.

Little else is known about Osmosians so far, except that they are outwardly indistinguishable from humans except for the fact that Osmosians live for hundreds of years, and after about one hundred years when an Osmosian is fully mature, they begin to grow antlers (confirmed by Dwayne McDuffie).

Trivia

 * It is also hinted that Osmosians, as a culture, have spiritual beliefs, as before he died, Devin Levin told Max that he'd be watching over him from now on.
 * Kevin Levin, one of the main characters, is a human/Osmosian hybrid; one of his parents, his father, (Devin Levin) was an Osmosian, and Kevin's mother, Mrs. Levin is human.
 * It is confirmed by Dwayne McDuffie that there is Osmosian DNA in the Ultimatrix.

Notable Osmosians

 * Devin Levin (Kevin's father)
 * Kevin Levin (Half-Human half-Osmosian)
 * Aggregor