Axioma de Ariolo Divinus

The complete doctrine of the great necromancer, Kalatcha. Taken as gospel by some, other interpret it in varying ways to fit their alignment. Its pages damp and sharp, its leather-bound cover burns to the touch, as a sphere glows an eerie green when a hand tries to open it. Only when flesh its placed and burned away can it be opened. 

Masters knowledge: The doctrine give you resistance to necrotic damage. In addition, your spells that deal necrotic damage bypass resistance. 

Burdon of Power: The spirit of Kalatcha can hold concentration for you on a different spell while you maintain concentration on a spell. You must make saves for both spells, and you do so at disadvantage. 

The Blessing of Death: Undead under your control add your proficiency bonus to their attack rolls, and deal an extra 1d6 necrotic damage on hit.

Curse: The Axioma de Ariolo Divinus holds secrets that cannot be unknown once you let them into your head. You may unattune to the item at anytime, however, from the moment you attune the first time, your spells to restore life to a dead creature will always fail. You may only animate dead from now on.   

"Ahsss Clakz Shuonz!"- Kalatcha(Untranslatable Thri-Keen) 

Notes: wizard, warlock, or cleric