"Tony's worst enemy has always been himself." Stephen really shouldn't speak like he's an expert on Tony Stark but their magic lessons together have been enlightening. It doesn't take much to push the man to do something he shouldn't.

He spins Loki away from him and draws them back in. "I'm going to trust you know what you're doing manipulating him into making the Destroyer for you. Your ace in the hole for fighting our captors, I assume?"

Why else would Loki make such a powerful thing? Clearly it was to escape this place and fight against the fae.