Staff of Unholy Life

Staff, very rare (requires attunement by a cleric, warlock, or wizard)

Prized by necromancers and other practitioners of dark magic associated with animating the dead, this grisly staff made from a fused spinal column topped by a humanoid skull allows use of the following spells. The casting time of create undead is reduced to 1 action.

The staff has 10 charges for the following properties. It regains 1d6+4 expended charges daily at midnight. If you expend the last charge, roll a d20. On a 1, the staff loses its properties and becomes a nonmagical quarterstaff.

Spells. You can use an action to expend 1 or more of the staff’s charges to cast one of the following spells from it, using your spell save DC: animate dead (1 charge), create undead (3 charges), finger of death (5 charges)

Thanatopsis. When you cast a spell that deals necrotic damage, as a bonus action you can expend 1 of the staff’s charges to unravel the deathless spirits of the undead with your spell. Any resistance or immunity to necrotic damage that undead creature possess does not apply against this spell.