@JeremyECrawford Shadow of Moil spell makes the warlock heavily obscured, but the "flame-like shadows" that heavily obscure only the warlock are physical concealments (like flames/smoke) or are mundane shadows (so darkvision lets see the warlock in shades of gray)?

— Draconis (@DerynDraconis) January 10, 2019

Shadow of Moil heavily obscures you, full stop. The spell also dims the light around you.

The fact that you're heavily obscured is a result of the flame-like shadows surrounding you, not the result of being in darkness. This means you're heavily obscured even to darkvision. #DnD https://t.co/dEAZRZsjLi

— Jeremy Crawford (@JeremyECrawford) January 14, 2019