@JeremyECrawford Can you cast AOE spells (IE fog cloud) so they effect an area 1 or 2 squares off the ground (IE to confound flying NPCs)?
— Jeramy M. Pappas (@JMPappa) August 25, 2016
An area spell tells you if it must target an area on the ground or if it has some other targeting limitation. #DnD https://t.co/PLMzDnhDc0
— Jeremy Crawford (@JeremyECrawford) August 25, 2016