Army of Torment

You call forth tormented souls, as you chant a song of war and death.
An army of tormented soul comes forth in a 60 feet radius you can see within range, attacking any living creature within that space. Each creature inside that sphere has to make a Constitution saving throw or take 10d8 necrotic damage, or half as much on a successful save. Each creature inside that sphere also has to make a Wisdom saving throw or take 10d8 psychic damage and be frightened for the spell's duration, or half as much on a successful save and not be frightened. A creature can repeat the saving throw against the frightened condition at the end of its turn.
A creature killed by this spell, adds its soul to the tormented army increasing the necrotic and psychic damage by 1d8 each.
While you are concentrating on the spell your movement speed is 0 and the spell ends early if you cannot speak. As an action you can move the sphere of tormented souls by 50 feet in any direction you choose, but staying within range.