Omega-level mutantsAn Omega-level mutant is one with the most powerful genetic potential of their mutant abilities. The term was first seen in the 1986 issue Uncanny X-Men #208, but was completely unexplained (beyond the obvious implication of it referring to an exceptional level of power). The term was not seen again until the 2001 limited series X-Men Forever. Some abilities depicted by mutants described as Omega-level include immortality, extreme manipulation of matter and energy, high psionic ability, strong telekinesis, and the potential to exist beyond the boundaries of the known physical universe. No firm definition has been offered in comics. Mutants that have been confirmed as Omega-level include Jean Grey,[6] Vulcan,[7] Rachel Summers,[8] Iceman,[9] Legion,[10] Elixir,[11] and Franklin Richards.[12] Sentinels identify Storm as a possible Omega-level mutant.[13]