In Wuji novels, artifacts were usually divided into different grades, which were determined by their weight and rarity. Among them, the most common types of artifacts were: 1. Treasure weapon: Usually weighing between tens of kilograms to hundreds of kilograms, it is very precious and is usually the main weapon of a top-notch martial artist. [2. Light Weapon: Usually, it weighs from a few kilograms to dozens of kilograms. It is one of the more precious weapons of some top martial artists.] [3. Precious Weapons: Usually weighing between tens of kilograms to hundreds of kilograms, the price is medium. It is a weapon that some ordinary martial artists can use.] 4. Treasure weapons: usually weighing between a few hundred kilograms to a few thousand kilograms, very precious. Usually, it is the main weapon of some high-level martial artists or big sects. 5. Divine weapons: Usually weighing more than a few thousand kilograms, they are very precious and are usually some top martial artists or extremely rare weapons. The grading system of artifacts was very important in martial arts novels. Different levels of artifacts had different power and effects in battle, and it also reflected the strength of different martial artists.