@JeremyECrawford can a stunned creature make lair actions
— Jonny Ward (@darth_dom) May 10, 2016
You can't take lair actions or legendary actions if you're incapacitated. See https://t.co/bFzJE6wdbm. #DnD https://t.co/ecRnCgSDel
— Jeremy Crawford (@JeremyECrawford) May 18, 2016