Conjure Shadow Demon

As a ritual, you summon a shadow demon that appears in an unoccupied space you can see within range. The shadow demon disappears when it drops to 0 hit points or when the spell expires.   Roll initiative for the shadow demon, which has its own turns. You can issue orders to the shadow demon, and it obeys you as long as it can attack a creature on each of its turns and does not start its turn in an area of bright light.

If the demon has no one to attack, receives no instructions from you, begins/ends its turn in an area of bright light, or you lose concentration or leave the protective circle, the shadow demon immediately makes a Charisma check contested by your Charisma check. If you fail the check, the spell no longer requires concentration and the demon is no longer under your control. The demon automatically succeeds on the check if it is more than 100 feet away from you.

While casting the spell, you draw magic runes on your face with the ash, then use the blood to scribe a circle in runes ( at least large enough for you to sit or stand, but no larger than 8 feet across) on the ground using the blood of an intelligent humanoid slain within the past 24 hours.  The summoned shadow demon cannot cross the circle or target anyone in it while the spell lasts.