@JeremyECrawford could a wizard make a sphere around a creature using wall of force and then chill touch to damage them through the wall?
— Tinker-TDC (@TubaDanCross) December 9, 2015
Unless a spell says otherwise, you can't target someone behind total cover (PH, 204). [Amending another tweet] #DnD https://t.co/dYCFBXp0gj
— Jeremy Crawford (@JeremyECrawford) December 17, 2015