@JeremyECrawford Volo's Guide – Gnoll Flesh Gnawer – Sudden Rush: It's an Action right? So it can't Multiattack & Sudden Rush in its turn?

— Stephane Bureau (@buro00) November 16, 2016

If a monster ability is in the Actions section of the stat block, the ability is an action. #DnD https://t.co/0HMlvktqfG

— Jeremy Crawford (@JeremyECrawford) November 16, 2016