The writers for these Marvel movies are totally masters of this kind of thing. So many of these gems from the movies. My favorite was from Avengers and Endgame.
STARK: What he's got is an ACME dynamite kit. It's gonna blow up in his face, and I'm gonna be there when it does.
BANNER: Yup. I'll read all about it.
STARK: Uh huh. Or you'll be suiting up with the rest of us.
BANNER: Ah, you see, I don't get a suit of armor. I'm exposed, like a nerve. It's a nightmare.
STARK: You know, I've got a cluster of shrapnel trying every second to crawl it's way into my heart. This stops it, this little circle of light. It's part of me now, not just armor. It's a terrible privelege.
BANNER: But you can control it.
STARK: Because I learned how.
BANNER: It's different.
STARK: Hey, I read all about your accident. That much gamma exposure should've killed you.
BANNER: So you're saying that the Hulk - the other guy - saved my life? That's nice. It's a nice sentiment. Saved it for what?
STARK: I guess we'll find out.
and from Endgame
HULK: Lightning won't help you pal. It's gotta be me. You saw what those stones did to Thanos. They almost killed him. None of you could survive.
CAPTAIN AMERICA: How do we know you will?
HULK: We don't. But the radiation's mostly gamma. It's like I was made for this.
that's some serious worldbuilding skill there.