Nit-picky: in Jan. 19th Dragon Talk, discussing path to target, example of fireball and glass isn’t covered by rules Take a look at the section in the PH called "A Clear Path to the Target" (p. 204).
— Jeremy Crawford (@JeremyECrawford) July 14, 2017
Your example was a point that can be seen with an obstruction in between, which is not stated on 204 (e.g. a “point that you can’t see”)Look at the sentence before that.
— Jeremy Crawford (@JeremyECrawford) July 14, 2017
By that sentence, the target is invalid, which means spell failure; which is not a fireball detonating on the glass Btw, in the midst of this conversation, I would like you to know that I appreciate the work you do, and that im trying to not be an a-hole
— Eric Green (@quadhund) July 14, 2017
Now look at the third paragraph under "Areas of Effect." The text of those rules is how I arrived at the ruling in the podcast.
— Jeremy Crawford (@JeremyECrawford) July 14, 2017
I proly shouldn’t have wasted your time because I accepted the ruling from the podcast 🙂 I’ll buy you a gin if you are ever in Champaign I do enjoy a glass of gin! 🍸
— Jeremy Crawford (@JeremyECrawford) July 14, 2017