Vyle's Lightning Barrage

You thrust both hands outward, punishing a target with the full might of a storm. Make a ranged spell attack. On a hit, the target takes 3d12 lightning damage and must make a DC 14 Constitution save or be paralyzed for the duration of the spell as the severe voltage overwhelms its body's ability to function. The targeted creature may reattempt this saving throw each turn. Creatures that are wet, or creatures such as water elementals whose bodies are primarily comprised of water, and metal constructs such as animated armor suits, automatically fail this save. Creatures made of earth or stone automatically succeed on this save.

On each of your turns for the duration of the spell, you can use your action to deal 3d12 lightning damage to the target automatically. The spell ends if you use your action to do anything else. The spell also ends if the target is ever outside the spell’s range or if it has total cover from you.