The Arcane Compendium (5e Equipment)
From D&D Wiki
Wondrous Item, artifact (requires attunement by a spellcaster)
The Arcane Compendium is a leather bound book is with a tree design on the front the book produces a slight blue glow from between the pages.
Backstory Many many years ago a wizard that was a servant of the God of magic ask his god for a indestructible book for which he could record his life and all the spell he knew and would know, and his God delivered granting him this book but saying that he must put every spell he ever learned into it and so the Wizard feeling so very humbled by his God granting his request, wrote down every spell he ever knew into the book till the day he died the book now resides in the wizards tower(Your DM decides where the tower is) this wizard was considered to be the most powerful ever to exist many many people have heard of the book and it's origin, though as all tales it has been distorted by the passing of time and there are many versions of it, and while many people have been searching for this book for centuries none have even found the tower, until you...
Attunement To attune to The Compendium you must have a Intelligence of 20 or more and cast the identify spell on the book or succeed a DC 25 Arcana check. When you do either of these things, the book open and the pages flutter to the back of the book where your names appear is fancy bold black scrip as well as any titles you may have, when you attune to the The Compendium a key appears on your wrist, the key itself is brown with no particular design on it, but the key is hung on your wrist by cord of pure gold with little arcane letters written on it, the key cannot be removed from your wrist except by a wish spell. The The Compendium can only be opened with the key and when you hold the key in front of The Compendium a red lock appear floating above the cover this lock can only be unlock with the key and by saying the command words "Et Magia, signatus est in Arcanis." the book closes an locks itself, it can be also locked with the key but otherwise The Compendium stays unlocked.
Spell Casting The Compendium counts as an arcane focus and spells cast using the book are unaffected by Counterspell and Dispel Magic. You can cast spells from the The Compendium's spell list by spending an amount of charges equal to the spell level. The Compendium has 20 charges and regains 1d8+4 charges at dawn. You may not cast a spell through The Compendium if you do not have spell slots for the that level of spell. You can add any spell you know into The Compendium by spending 24 hours concentrating on adding the spell to the book.
To whoever finds this book I am Gremon Alpator and I have been writing in and recording spells in this book for 100s of years, and I humbly ask you to do the same please grant an old mans dying wish and complete this book, and thank you for visiting me. ~ Gremon the wizard o--- *there's a line of black ink where it look like the quill was dragged off the page*