There are quite a few achievements that you need the Faceless Masks to obtain but the two most notable one are
환영에 온 걸 환영합니다 and
광기의 세계. Both of these achievements have a reward that is more than just achievement points:
- 환영에 온 걸 환영합니다 requires a 5 mask run in both Stormwind and Orgrimmar, in addition to some other requirements. This rewards the 느조스의 검은 뱀 mount.
- 광기의 세계 requires a solo 5 mask run in both Stormwind and Orgrimmar. This rewards the title.
The black serpents of N'Zoth are the harbingers of his ultimate vision becoming reality. Only those servants or enemies that can tread this space have any chance of wrangling them.
Achievement:
환영에 온 걸 환영합니다