Blade Rain

You create an array of spectral daggers within range that lasts for the duration, until you cast this spell again, or lose concentration. When you cast the spell, you make a ranged spell attack against the target and summon 2 spectral daggers to strike the target, dealing 2d6 piercing damage. 

As a bonus action on your turn, you can make the daggers attack the same target again or switch to a new target within 30ft.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for every spell slot level above 2nd, as another dagger is added.