Arc Lightning
2nd-level evocation
Casting Time: 1 action
Range: 30 feet
Components: V, S, M (a tuning fork)
Duration: Instantaneous
A bolt of lightning shoots from you to a creature you can see within range. Make a ranged spell attack. On a hit the target takes 2d8 lightning damage and one creature of your choice within 30 feet of it must succeed on a Dexterity saving throw or take 2d12 lightning damage.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage to the initial target increases by 1d8 and the damage to the second target increases by 1d12 for each slot level above 2nd.