Command The Thunder

You shot a charged arrow to an enemy, causing one or several lightnings to fall on the target and leaving it susceptible to attract more lightnings. As part of casting the spell, make a ranged weapon attack on a target using a shortbow or a longbow. On a hit, the target suffers the normal weapon's damage but one lightning hits the target, a lightning deals 1d8+2 lightning damage. 1d4 additional lightnings fall if you use the spell during a thunder storm. At the end of each of the target's turns for the next minute, the target must succed on a dexterity saving throw or be hit by another lightning on a fail. The target may use an action to make a DC 10 medicine check to take out the arrow ending the spell's effect. The arrow then disappears.

Alternatively you may shoot the arrow in the floor in a position withing range calling a thunder to fall on that space releasing a powerful shockwave on the ground, each creature in a 10 foot radius of that space must succed on a dexterity saving throw or be dealth 1d8+2 lightning damage on a fail. The arrow then disappears.

At higher levels: An additional lightning falls on the first attack for each level the used spell slot has beyond the 1st and when you reach 11th level.