Eight unique unit variants comprise their ranks. Warrior nuns are included too which are usable by all except the Ikko Ikki, plus there's a new historical battle.
Solo and multiplayer campaigns support the new Ikko Ikki clan, which get their own skill trees and Monk agent to recruit. Warrior nuns are for all other clans, a Naginata Warrior Monk hero is included and the historical Nagashima battle where Ikko Ikki faced Oda.
There's some avatar hood, robe and barefoot leg armour pieces as well. The Ikko Ikki Clan Pack is available online for £2.99 at various digital storefronts.