Durability
Weapon Durability
When used repeatedly, weapons will deteriorate and eventually become unusable.
Durability is tracked by a star in the corner of the weapon icon. Each time the weapon is used, there is a chance that it will lose a level of durability, which is depicted by a portion of the star turning from yellow to black. Every weapon has five levels of durability from undamaged to broken. The likelihood of dropping a level of durability depends on the particular weapon (for example a spiked baseball bat is more likely to become damaged with each hit than a regular baseball bat).
When the final level of durability in a weapon is gone, the star becomes completely black. At that time the weapon item remains equipped, and can still be brandished, but it will not function as a weapon.