Has Ultron ever interacted with X-Men stories? Given that the machines are one of their foremost enemies, and Ultron is arguably the foremost AI supervillain in Marvel. Ultron has also subjugated the Phalanx before, and his goals don't necessarily reflect the machines which may create the unique scenario of putting the machines and mutants on the same side. Could Ultron possibly overcome the higher intelligences like from the Titans and above?