@JeremyECrawford In 5e D&D, if a Fighter multiclasses with Warlock, can they still wear heavy armor and use all the Warlock abilities?
— Friar Tuk (@ahbleecker) June 12, 2015
You can cast spells in armor if you're proficient with it (PH, 201). https://t.co/wFpmU9qBpH
— Jeremy Crawford (@JeremyECrawford) June 17, 2015