Quote Originally Posted by Imora View Post
The crystal tower raids are part of the story now. They became mandatory a few patches ago.

I know because I had to painfully do WoD.
yeah, that's the only one. Otherwise, all the other raids in all the other series weren't required at any point. But my guess is (depending on how the devs took it), this might be a new requirement moving forward for future MSQ patches in 6.0 and onward. Complete crystal tower series -> access to MSQ in Shb. Clear Skypirates series (HW 24man raids) -> EW msq requirements, etc.