7. Box
As a young man, Madison Jeffries was irked by his power to fabricate inorganic materials into any shape or design he could imagine, and unlike his brother, who used his transmutative powers as a doctor, preferred to earn a living taking on labouring jobs until a fateful encounter with robot engineer, Roger Bochs, saw the pair collaborate on a combat mech, the Box robot, Jeffries perfecting it by creating a living metal which provided a greater degree of fusion with a human pilot. When a series of bizarre romantic entanglements caused Bochs to become warped by paranoid delusions, Jeffries was forced to confiscate the mech, and over time tailored it to suit him, the robots name eventually coming to serve as an alias. While in command of the thousand pound suit, Boxs power is on par with The Thing, and in addition to being a walking, talking tech factory, he can also communicate technopathically with A.I. and other machines, making him a formidable ally in the technophile world of the X-Men. Oh, and Tony Stark? Jeffries' is bigger.