Something about the costumed hero's voice sounds vaguely familiar, but Thor can't place it. Just someone he's heard in passing, maybe - that happens often in the Nexus, after all. He's certain he would remember the distinctiveness of that outfit, had he spent much time in this child's company before.

"It's only a spar, so the goal is not to draw blood or break too many bones," Thor answers, as if that's a normal part of Asgardian combat training. Mostly because it is, usually. Or was. Valkyrie hasn't quite started beating on the refugee army that heavily yet, but if a warrior can't take a blow and keep fighting, they won't last long in real battle. Better to learn how to handle it when you're not in danger of dying immediately if you can't cope. "Use of magic or that sort of thing depends on what we agree is fair. You have your webs, right?"