The Coming Firestorm: Rex and Kilroy's full powerset · 2:20pm Jul 29th, 2017
Okay, after doing further research into the various incarnations of Firestorm, I was able to come up with a powerset that is somewhat of an amagamation of the various version of Firestorm. Here's the complete list:
Molecular Manipulation: Firestorm has the ability to rearrange the atomic and subatomic structure of inorganic matter, rearranging subatomic particles to create objects of different atomic characteristics of equal mass. He can not only change and transmute the atomic composition of an object (e.g., transmuting lead into gold of equal mass) but he can also change its shape. He cannot, however, affect organic matter without painful, even lethal, feedback. This organic limitation does not extend to his person as he can change himself at will, allowing him to regenerate lost and damaged tissue, boost his immune system, shapeshift, and survive indefinitely without food, water and air. Much like a Green Lantern's limitations, Firestorm can only create items the "driver" of the Firestorm matrix is able to understand the workings of. Unlike a Green Lantern's creations, Firestorm's alterations are permanent unless he reverses them.
Flight: Firestorm has the ability to fly at fantastic (but unmeasured) speeds.
Intangibility: Rex can render himself intangible and thereby pass through solid objects harmlessly.
Energy Manipulation: Firestorm can generate destructive and concussive blasts of fusion energy from his hands, to absorb radiation harmlessly.
Enhanced Physical Stats: Firestorm has superhuman levels of strength, a healing factor, and resistance to injury.
Physical Strength up to 100 tons.
Energy Blasts: Can shoot concussive force, heated or charged particles, and powerful 'fusion blasts.'
Enhanced Vision: Rex can see atomic interactions and the structure of molecules. He can also see the ultraviolet spectrum and detect thermal signatures, and he also has microscopic and telescopic vision.
Self-Sustenance: Rex can self-sustain himself for extended periods of time with food or water. He can survive in space without equipment.
Pyrokinesis: Due to the nuclear nature of the transmutation of the two bodies, Firestorm is able to produce nuclear energy in the form of fire from parts of his body. He can use his control over the energy to project it willingly in the form of concussive blasts. These "nuclear blasts" are often shown to be quite powerful and have shown to be able to knock unarmed humans out unconscious and are hot enough to burn through solid structures and even cause harm to meta-humans. The impact of these blasts sometimes create an explosive-like force.
That's all for now.