Good question, i'd have to say nin cause its a summon technique. They would learn this jutsu after they learned frog summon tho (idk what lvl that is). Also the frogs stomach acid would dmg opponents (nin based as well). Hmm instead of it just being on the floor whay do yall think of it creating a little room tiles 2x2 ur opponent would be trapped but they could move around and atk the walls, with the possibliy of breaking out (like Itachi did)?
