@JeremyECrawford Infestation vs. Undead: Immune to the poison damage, but would they also be immune to the directional effect?
— Chris Magalee (@_ChrisFC) December 21, 2017
Infestation spell—being immune to poison damage doesn't immunize you against the spell's movement effect. Those bugs are distracting! #DnD https://t.co/a37zKDnXzy
— Jeremy Crawford (@JeremyECrawford) December 22, 2017