[Sebastian had something of the same idea, once he realised the monster are going after him rather than Ciel - he's less concerned with protecting everyone else, but if he can get away enough to use his strength freely and kill a big chunk of monsters, well. If it keeps everyone else safe at the same time, it's not like he minds.
He's managed to draw his own swarm of monsters down to the beach - the idea was to run out on the water and drown the lot, but then he spots Korra and her monster entourage, and calls out to her:]
Miss Korra! May I ask your plan? [Joint forces and all that?]