@JeremyECrawford How many magic items can a player have attuned at one time?
— David Barnes (@flyinghawk261) March 15, 2016
Three. See the Dungeon Master's Guide for the rules on attunement (p. 136–8). #DnD https://t.co/VhzJbbuQES
— Jeremy Crawford (@JeremyECrawford) March 16, 2016