@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