Blood Staff

The Blood Staff appears to made entirely from bone and at the top sits what must be presumed to be the skull of an adult small humanoid creature or the child from a medium sized humanoid species. There's no telling exactly how the staff was manufactured, as it appears to be made from one solid bone, but obviously must be made from smaller bone-pieces that have somehow been molded into this shape. The staff is full of runic etchings and carvings that repeat the same sequence over and over again on almost every surface and the staff is completely soaked in dried blood. The dried blood doesn't seem to come out and doesn't rub off, but yet you're immediately aware that it is blood...
The staff has 7 Charges for the following properties. The staff regains 1d6 + 1 expended Charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff retains its +1 bonus to Attack and damage roll but loses all other properties. On a 20, the staff regain 1d8 + 2 Charges. While holding this staff, you can use an action to expend 1 or more of its Charges to cast one of the following Spells from it, using your spell save DC and spell Attack bonus: Animate Dead (2 charges) or Create Undead (3 charges). Note that Create Undead still requires the 150 GP worth of material components.
If an undead was prepared using the companion item, the Preserver, the staff can instead expend 1 charge to create a Squire of Ravenloft (though it doesn't come equipped with armor and weapons other than what the corpse already had on it) instead. Squires of Ravenloft are a cross between a Fleshgolem and a Mummy. The staff can also bind a created Squire of Ravenloft to a control rod crafted from a thighbone made from a medium sized mammal - up to six Squires can be bound to the same control rod. In order to craft the control rod, the control rod must have the same rune sequence carved into it that covers the staff, and then the Preserver must be stabbed into the corpse, soaking it in heartsblood which is then dripped unto the thighbone. When creating a Squire and such a rod has been crafted, the rod automatically is bound to the Squire.