EP

EP, or Energy Points, are a vital that measures a unit's ability to use its more powerful abilities. EP is spent to activate most techniques, with more powerful techniques costing larger amounts of EP.

EP is also used to coordinate tactics, allowing more than one unit in a party to act in one turn. See Party action.

Usage cap
A unit can only use a certain amount of EP in a turn; the limit is called the EP usage cap. This limit is equal to 40%, or two fifths of that unit's maximum EP pool. The easiest way to keep track of this is to list it for each unit somewhere in your character storage topic. It increases by 2 every time you purchase 5 EP in the Vitals Shop.

Party action costs do contribute towards a unit's usage cap. However, EP usage cap only applies to EP used for this or techniques, not EP lost by other means.