@JeremyECrawford Does grappling a creature on fire or made of fire cause any problems for the grappler? Like a flameskull, or a magmin?
— Jolzeres (@Jolzeres) May 3, 2017
If a creature's fire/spines/spikes/etc. affect grappling, that fact is noted in the stat block. A DM might create additional effects. #DnD https://t.co/UjdCgZiJcH
— Jeremy Crawford (@JeremyECrawford) May 3, 2017