Dark Orb, Sorcery (Londor)

You create a black orb that seems to sap away the light around it. Make a ranged spell attack against the target. The target takes 4d8 bludgeoning damage on a hit, or half as much damage on a miss. Whether you hit or miss, the target's movement speed is reduced by 10 feet until the end of its next turn.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.