@JeremyECrawford Hi Jeremy! Can a paladin cast Shield as a reaction to an attack on its steed?
— Karl (@KarlFromTheNet) June 13, 2017
The shield spell is triggered by you being struck. Once you cast it, the benefit extends to your mount from the find steed spell. #DnD https://t.co/wYz0FjR4Pb
— Jeremy Crawford (@JeremyECrawford) June 14, 2017