"I'm--" Firo's ready to defend, but then he realizes that the creature isn't heading for him. It should be a relief, but not when the manticore is going for the person who just saved his bacon.

Well, crap. He can't just watch this go down, even if he isn't sure he can actually take down one of these monsters.

As it lunges, he darts forward, knife out ahead. He's moving as fast as he can and aims a cut at the side of the beast's neck. It might not cut as deep as he wants it to, but he hopes it'll knock it off balance.