@JeremyECrawford Lizardfolk Barbarian, would Natural Armor and Unarmored Defense stack?

— ℧ (@OmegaMaelstrom) November 28, 2016

Different AC calculations don't stack. Choose one. [Search terms: lizardfolk, Unarmored Defense, natural armor, mage armor, Wild Shape] #DnD https://t.co/Ci1hkT93Zn

— Jeremy Crawford (@JeremyECrawford) November 29, 2016