I wasn't going to fight him, I'm not an idiot. [Contrary to what Teddy might say when he does something crazy.] Magic is weird sometimes- different kinds of power kind of... call each other. Like magnets, almost. I've felt it before, it either clashes or gets attracted to the magic around it.

[It occurs to him that if he goes any further with this he'll start rambling about the mechanics of magic, something he's sure Tony has zero interest in, so he settles down and gets back to the main point.]

Think of it as wi-fi. My magic's a wireless device testing the air for a signal, and Loki's a local connection. I just want to see how strong it is.