Vengeful Spirit

You summon a floating skull wreathed in ghost flame to chase down a creature within range. Make a ranged spell attack against the creature to engulf it in ghost flame. On a hit, the target takes 1d10 necrotic damage.

This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).