Magneto spotted his adversaries and the corners of his mouth turned up in a small smile. Here was the diminished Calvary. A man dressed like a flag and two pathetic spiders. None of them deserved the abilities they had, they weren't born with them. Aberrations parading as heroes and here they were, unable to protect their own. He'd pick them off, one by one, extract Mystique, then pull the whole miserable tower down around their heads. This attack was entirely justified and no mewling humans in spandex were going to stand in his way.
The building began shaking harder, Magneto's intent to weaken it even as he tried to shake off the Spider-Man. As the Captain came barreling out of the front doors he found the S.H.I.E.L.D. guns that had just killed their owners were all suspending in midair and turned towards him. They fired all at once, muzzles aimed at his chest.