Glory of the Pandaria Raider

Enter Mogu'shan Vaults on Heroic and complete four achievements: Must Love Dogs on The Stone Guards, Anything You Can Do, I Can Do Better... on Feng the Accursed, Sorry, Were You Looking for This? on Gara'jal the Spiritbinder, and Straight Six on Elegon. Note that Getting Hot In Here (Spirit Kings) and Show Me Your Moves! (Will of the Emperor) are no longer required for the meta-achievement.

Anything You Can Do, I Can Do Better on Feng the Accursed requires interaction that is not functional when soloing, so bring at least one additional player to ensure the mechanic triggers correctly.

Sorry, Were You Looking for This? on Gara'jal the Spiritbinder requires multiple players standing on the totem simultaneously, as the mechanic does not activate with only one player present.

Enter Heart of Fear on Heroic and complete six achievements: Overzealous on Imperial Vizier Zor'lok, Candle in the Wind on Blade Lord Ta'yak, Like an Arrow to the Face on Garalon, Less Than Three on Wind Lord Mel'jarak, I Heard You Like Amber... on Amber-Shaper Un'sok, and Timing is Everything on Grand Empress Shek'zeer.

I Heard You Like Amber... on Amber-Shaper Un'sok requires Living Amber pools to overlap precisely before the creature transforms; consider bringing an additional player to help manage pool placement and Living Amber spawn timing.

Timing is Everything on Grand Empress Shek'zeer requires avoiding five stacks of her debuff before her energy fully drains; if you are resetting repeatedly due to stack accumulation, bring an additional player to meet the mechanic requirements.

Enter Terrace of the Endless Spring on Heroic and complete the Power achievement on the Protectors of the Endless to fulfill the final requirement of the meta-achievement.