Artifact Ranks (contain spoiler)

1-star artifact (low tier artifact) (better than normal equipment) (it can strengthen the user temporarily)

2-star artifact (high tier artifact) (rare equipment) (it can strengthen the user whenever it's in use and gives extra mana)

3-star artifact (artifact will have 1 element) (rare treasure) (the user can use whatever element the artifact posses and if they have the same element it will strengthen his element and his control over it while in use)

4-star artifact (artifact will have 3 elements) (national treasure) (the user can use whatever 3 elements the artifact posses simultaneously)

5-star artifact (artifact will have a unique ability) (immeasurable treasure)