Volatile Thrall

Choose a pile of bones or a corpse of a Medium or Small humanoid within range. Your spell imbues the target with a foul mimicry of life, raising it as an undead creature of your choice with a challenge rating less than the spell’s level, which matches the physiology of the remains. The spell lasts for a number of rounds equal to 3d4, rolled by the DM.

This creature shares your initiative. On each of your turns, you can use an action to mentally command the creature you made with this spell, if the creature is within 120 feet of you.

You decide what action the creature will take and where it will move during its next turn. If you issue no commands, the creature attacks the nearest available target (determined randomly if there are multiple options). If the spell ends before the duration, the creature remains animated but the DM takes control of the undead. You can regain control of the creature by casting this spell again.