This formidable magical tome has pages of blackened leather (skin?) upon which symbols and text appear glistening red, like freshly spilled blood...but when turned in the light they also shimmer foil-like.
If you are Evil, this tome can be used as a spellcasting focus.
This tome can only be destroyed by being dropped into a Sphere of Annhilation, or by the will of a Greater God of Magic. When not attuned to, it appears to be blank and all attempts to write in it or deface its pages fail.
Powerful Spells. If you are Evil and attuned to this tome, symbols are enscribed within it representing each cantrip you know and spell you have prepared that requires an attack roll or forces a saving throw, one per page. There are magically exactly enough pages to hold these symbols.
When you use this tome as the spellcasting focus to cast a spell with a corresponding symbol within it that requires an attack roll, you gain +1 to hit and damage.
The following abilities are unlocked for an attuned character of the indicated character level or higher.