That was always going to surprise him, until Tony figured out how it worked and made one for himself. Billy had done the same once, before a subway station fell on their heads and held the whole structure up for hours while they sweated it out underground, and Tony still eyed the sheer dome suspiciously. It didn't help that she looked younger than the boy wizard sitting on the ground and asking Tony to come up with the answers to all her existential questions. He had been there just as long as she had and he wasn't the one with magical powers.
The armor was settled, solid and impenetrable again, when Tony pulled his helmet off and combed his hair back away from his face, still admiring Wanda's work. "Got anywhere better to be?" he asked, cutting her a sidelong look with a smirk, as though he really believed there was nowhere more spectacular. Especially if her evening was meant to be spent at home with that book. Meandering closer, eying Wanda like she was a specimen caught in this bubble, he asked, "That where you're living now?" Tony hadn't heard anything, but without Pietro latched onto her like a parasite her options must have opened up.