You hurl a 4-inch-diameter sphere of energy at a creature that you can see within range. Make a ranged spell attack against the target. If the attack hits, the creature takes 4d8 lightning damage and must make a Constitution saving throw. On a failed save, the creature is paralyzed until the end of it's next turn. Any creature with resistance to lightning damage has advantage on the saving throw.

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 1st.