@JeremyECrawford Is mage armor visible?
— An Abrasive DM (@jackAbrasion) August 27, 2015
When I'm DMing, that's an aesthetic choice that I leave to the spellcaster, since the spell doesn't specify. https://t.co/4BCkJwIBmF
— Jeremy Crawford (@JeremyECrawford) August 28, 2015