Gallowglass

Gallowglass's powers and abilities

Super Strength/Nigh-Invulnerability: Gallowglass is a being formed from neutron-degenerate matter, the substance which exists only in the heart of suns. This neutron-degenerate matter makes his body very dense and gives him incredible strength, able to overpower the Thing and Magnificent Brute at the same time.

Molecular Combustion: The molecules of his body are very unstable which is why he has a personal force field active at all times. When he lowers his force field he becomes spectacularly explosive. When his molecules so much as touch the atmosphere, they cause a huge explosion which was shown to level a city block in under a second. Gallowglass was able to break through Invisible Woman's force field which was protecting the Ultimate Fantastic Four's spaceship, just by making contact with the spaceship he dissolved Invisible Woman (Ultimate)'s force field and destroyed their spaceship, all at once, which caused Sue a tremendous amount of pain.

Gallowglass's weaknesses

Without his personal force field Gallowglass' volatile molecules will be uncontrollable for him to maintain and causing him to explode. Invisible Woman was able to dissolve his force field using her own, the same way Gallowglass was able to dissolve Sue's force field by making contact with her's.