Oda Long Yari Ashigaru hold the distinction of having the best anti-cavalry skill out of any unit in Total War: Shogun 2, allowing them to easily defeat any cavalry unit in most situations. The longer spears of Oda Long Yari Ashigaru mean that they can be used in conjunction with other long yari or yari ashigaru to form double Yari Walls, which are devastating when used in defense. Oda Long Yari Ashigaru are twice as expensive to train and maintain as Oda Yari Ashigaru, but have much better melee attack and anti-cavalry bonuses, along with slightly better armor and morale.
Oda Long Yari Ashigaru are a type of spear infantry in Total War: Shogun 2.