AU

Ability Uses, commonly known as AU, refers to the number of times a pet can use a particular Skill before it is exhausted. The maximum number of Ability Uses any technique can have is 35, the minimum is 5. The "takes a break" event in Adventure will restore some of your pet's AU, as will a Kiddie Pool or AU Potion. Generally walking around is the easiest and cheapest method of recovering Ability Uses.