@mikemearls Do gelatinous cubes breath? PCs befriended sentient gelatinous cube, wondering if they can stuff him in bag of holding.
— Jonathan Thomas (@ASimpleFlan) January 11, 2016
I don't really have a canonical answer, but it's more fun to say they don't breath, so that's the answer. https://t.co/hs1TnbrYl5
— Mike Mearls (@mikemearls) January 11, 2016