Wondrous Item (Trench coat) , Rare, attunement (bard, sorcerer, warlock, wizard)
A functional, yet semi-fashionable trench coat with embroidery and magical stitching. The magical coat allows you to cast mage armor upon yourself as an action for one charge. The cloak has three charges, and recharges at a rate of one charge per week.
Expending more than one charge when casting mage armor grants the wearer an additional +1 to AC. Thus, one charge changes the base AC to 13 +Dex mod, two charges makes it 14 + Dex mod, and three charges makes it 15 + Dex mod. All other aspects of the mage armor spell remain the same.