Soul Ransom

House Dimir Spell
Level 4
Casting Time: 1 Action
Duration: 1 Minute (Concentration)
Range: 40 ft (?)
Target humanoid within range makes a Charisma (?) Saving Throw becoming charmed on a failure and taking 5 Necrotic Damage on a success (?).
While charmed by this spell, the creature cannot harm or negatively effect you in any way. (?) Until the end of this spell, the target humanoid can choose to end it at any time. If they choose to do so, they take 5d6 (?) Necrotic Damage.