Another of the three mutants outside of project Ressurection, Mutant Sigma is an ice dragon and a close friend of Delta. Though he joined unaware of the project's true intentions, Sigma's devotion to Phalanx has been strong since the project's termination. He serves under the virtue of Chaos, controlled by Sonja, as a mercernary for Phalanx. Mercenaries who serve under Phalanx are assigned jobs to worlds with species neutral to their war against the Kannists to gain potential allies.

Sigma is trained in a wide array of weapons, including types which Phalanx shuns like blasters. He also has a power drill constructed at the tip of his tail as a stabbing weapon, and then there's his power: a TK Bullwhip. This type of power is a mixture of subconscious and telekinetic power. The telekinetic part is it's a energy spike of electrical energy with an electromagneti field to contain it, even shape it. The subconscious part is where it takes on the form of a shape or fighting style or weapon the mutant is most familiar with. In this case, a bullwhip.

He can shorten or extend it and move it as willed, at the cost of more or less PEUs when he changes it's reach. As a weapon of electrical energy, it can cut through many materials. Conductive and ferrous types are most vulnerable to it. He can even convert the polarity of EM field to repel ferrous metals or other EM powers. However, it has all the weaknesses of electricity and magnetism put together, too. It is weak against insulators, heat, physical damage, and can attract unwanted ferrous objects to the mutant. Also, siphoning energy from other electrical sources can strengthen the electromagnetic shield too much, or may even overload it, causing the energy spike to surge out of control and risk electrocuting its user. Other than that, it's a most powerful weapon.