Storm Flurry

3rd-level evocation
Casting time: 1 action
Range: Self (5-foot radius)
Target: A creature within melee range
Components: S, M (two one-handed melee weapons each worth at least 1 sp)
Duration: Instantaneous
Classes: Ranger
Subclasses:

You brandish the weapons used in the spell’s casting and make a melee attack with each against one creature within 5 feet of you. On a hit with the first attack, the target takes the attack’s normal damage and an additional 3d8 lightning damage, and the attack you make against the target with the second weapon gains advantage.

On a hit with the second attack, the target takes the attack’s normal damage and each creature other than you within 10 feet of the target must make a Constitution saving throw, taking 2d8 thunder damage on a failed save or half as much damage on a successful one. If the first attack reduces the target to 0 hit points, you can make this second attack against a different creature within 5 feet of you.

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