The Ikko Ikki Clan pack unlocks the iconic Buddhist rebel faction for single and multiplayer campaign modes as well as multiplayer battles. The content also adds a brand new agent type, the Ikko Ikki monk, to the campaign map in addition to adding eight unit variants for the Ikko Ikki and the unique Warrior Nun unit for other factions.
On top of all this, there are also ten new retainers, new steam achievements, a unique Ikko Ikki General skill-tree, a new historical battle, new avatar armor sets for use in avatar conquest mode and much more.