[Let him get a feel for it, Lucina, do you want him to put in a good showing or not. He can see her getting impatient, which is also kind of a funny look on her.]

You're not used to people keeping you waiting, are you?

[But sure. This is a dead end, and they can spare some of their time to get a workout in. He steps away from her to raise the blade, but his eyes are on the terrain—committing it to memory before they start, rather than rely on the cursory once-over he'd given it already.]

Go easy on me, I'm starting to owe Aqua a whole lot of favors.

[Is he joking or not, who knows.]