To Serve and Protect?
One of the rarest magic items of all is the spellbook that is itself enchanted . When acquired by a new user these spellbooks are always blank and gain power based on the total level of spells penned in them . One well known example is the Book of Warding . Once at least 5 levels of spells are recorded in the owner is protected constantly by the Shield spell as long as the book is on their person . What most don’t know is that once more than 100 levels of spells are in the book the AC bonus doubles and the owner of the book gains evasion .