Yes, biting people tends to cause nasty infections if you don't clean it fast. That's why you don't want to be caught dead without a first-aid kit.

Anyway. Moves are magic bullshit and don't come with a free side of bacteria, so it's no longer a consideration. I haven't read anything about infection risks, at the least, so I doubt it's an issue.

[Firepaw tries biting, anyways, and-

...Where does he even start troubleshooting this. It's not like he hasn't taught his agents anything before, but this is so far out of his fields of expertise.]

Let's try something- Have you figured out the move scratch yet? Channelling your magic into your claws. I'm certain your species learns it.