There is no weapon more powerful than Artifact in Legion!
New in Legion, exceptionally powerful and mighty weapon, each specialisation has its own Artifact. Basic artifact is given in Order Class Hall: to get artifact you need to complete the chain of tasks for your specialisation. Each of them has artifact traits that improve abilities of your class. Relics are the items that may be inserted into your artifact and enhance ilvl and its characteristics. Artifact lvl grows as Artifact Power increases, besides new talents and relics become available. Artifact Knowledge is a special system that allows players to boost Artifact Power collection and speed up overall Artifact Weapon leveling. Artifacts have different tints and styles which may be unlocked through certain achievements and accomplishing certain deeds. Thus there are 36 artifacts in WoW: Legion plus one fishing artifact weapon for fishing profession.