Affinity (Revenant Wings)

Affinity is a gameplay element in Final Fantasy XII: Revenant Wings. It is a numerical value that determines the type and number of allied Yarhi that can be on the battlefield at one time. The blue area of Affinity bar at the top of the screen shows the amount of Affinity currently in control of the party, while the full length of the bar represents the potential Affinity that the player party can gain.

Using Affinity
Each Esper has a different numerical value that stands for the amount of Affinity it uses while on the battlefield. New Espers cannot be summoned when there is not enough Affinity in control of the party. To gain more affinity, capture Summoning Gates. Each allied Gate adds 10 total points to the player's Affinity. The Affinity used to summon a Yahri will become available for re-use when that Yarhi falls in battle. In addition, you may Dismiss a Yahri to recuperate its Affinity for use in summoning another.