Animated Undead Familiar

This spell creates up to 2 undead servants. Choose a pile of bones or a corpse of a Medium or Smaller creature within range. Your spell imbues the target with a foul mimicry of life, raising it into an undead creature. The target becomes a skeleton if you chose bones or a zombie if you chose a corpse (the GM has the creature's game statistics). While one of your undead familiars is within 100 feet of you, you can communicate with it telepathically. Additionally, as an action, you can see through your undead familiar's eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses that the familiar has. During this time, you are deaf and blind with regard to your own senses. These undead creatures cannot be healed by any means.

On each of your turns, you can use a bonus action to mentally command any creature you made with this spell if the creature is within 60 feet of you (if you control multiple creatures, you can command any or all of them at the same time, issuing the same command to each one). You decide what action the creature will take and where it will move during its next turn, or you can issue a general command, such as guarding a particular chamber or corridor. If you issue no commands, the creature only defends itself against hostile creatures. Once given an order, the creature continues to follow it until its task is complete.

These creatures are under your control for one week, after which it stops obeying any command you've given them and acts as aggressive undead creature. To maintain control of the creature for another week you must cast this spell on the creature again before the current spell period ends. When one of the familiars drops to 0 hit points, the spell must be cast on it again to reanimate it. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you animate or reassert control over two additional undead creatures for each slot level above 3rd. Each of the creatures must come from a different corpse or pile of bones.