X-Men: Days Of Future Past - 10 Questions Singer Failed To Answer

10. How Did Magneto Get His Powers Back - And Why Doesn't He Know Their Capacity?

By the end of The Last Stand, Magneto has lost his powers thanks to a tactical cure administration by the wonderful Beast, and is relegated to wandering around parks playing chess with himself because apparently the police just don't care about locking away the man who tried to kill millions, if not billions of people. He's fine after all, because he hasn't got any of his powers, which has obviously rendered him completely docile, like a dog with his testicles removed, and there's no way he would just be even more annoyed at humanity for developing the serum that removed the element of him that made him superior. Anyway, all terrible policing aside, there's no explanation of how Magneto actually got his powers back: yes there was a hint at the end of Last Stand that they were returning (despite that rendering the whole threat of the cure entirely null) but there was no explanation as to why, and then all of a sudden he's back to full capacity for Days Of Future Past. And then there's the fact that when he's imprisoned in the pentagon in the 1970s he is rendered powerless by the building's use of concrete, which entirely ignores the fact that the lift right next to his cell is clearly made of metal. Why didn't he just reach out and use that metal? Or just use some of the metal further away in the building to his own ends, since he is obviously capable of lifting a whole football stadium not long after, which isn't all made of metal either.