Equipment proficiency is a unit stat that improves depending on how long a unit has been equipping weapons, armor, and accessories. A unit's equipment proficiency goes up when they equip items and take action during Quests. When a unit has reached the appropriate equipment proficiency for an item, equipping that item will grant them the item's full stat values.
*Using a Skip Ticket to complete the Quest or only moving the unit (without engaging in battle) will not increase equipment proficiency.
*Items can be equipped to a unit even if the unit has not reached the appropriate proficiency.