@JeremyECrawford a player shoots a fireball into a bunch of goblins who happened to have a nilbog with them. Does the fireball trigger nilbogism and save all the goblins ?
— Luc Charette (@DnDPaladin) February 22, 2018
If you try to deal damage to a nilbog by any means (a weapon, spell, or something else), Nilbogism is triggered. If you're unaware of a nilbog's presence and the creature is inadvertently caught in an area of effect you create, you're not subject to Nilbogism. #DnD https://t.co/OTIj4pqM1P
— Jeremy Crawford (@JeremyECrawford) February 23, 2018