Call from the Grave

You utter a necromantic incantation, summoning one undead from the shadowy beyond. You choose the undead's type, which must be one of challenge rating 5 or lower, such as a wraith or a ghost. The undead appears in an unoccupied space you can see within range, and the undead disappears when it drops to 0 hit points or when the spell ends.

Roll initiative for the undead, which has its own turns. When you summon it and on each of your turns thereafter, you can issue a verbal command to it (requiring no action on your part), telling it what it must do on its next turn. If you issue no command, it spends its turn attacking any creature within reach that has attacked it.

At the end of each of the undead's turns, it makes a Charisma saving throw. On a failed save, the undead continues to obey you. On a successful save, your control of the undead ends for the rest of the duration, and the undead spends its turns pursuing and attacking the nearest non-undead to the best of its ability. If you stop concentrating on the spell before it reaches its full duration, an uncontrolled undead doesn’t disappear for 1d6 rounds if it still has hit points.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the challenge rating increases by 1 for each slot level above 4th.