To count as an Epsilon level mutant, you have to possess very little to no special abilities and a mutation that extremely negatively effects your day-to-day life. Some mutants of this level are killed by their mutations, like Sally Floyd's daughter, who around a few months of age began growing in reverse. Others have somewhat monstrous appearances, like Glob Herman or Beak. They often cannot function in society without aid, and can even end up hunted down as monsters, like The Worm (he's from District X and doesn't have a page). 20% of mutants fall into this category.