Iry
Legend
Giant Soul Sorcerer 1 is also an option. Choose Frost Giant for Armor of Agathys, and sorcerer contributes to your number of spell slots per day. Pros and Cons for both.An interesting multiclass for the diviner is Warlock. It allows you to grab Armor of Agathys which is a great non-divination 'prep' spell that is useful at various casting levels.