Decree of Pain

Your hands surge with death energy you shape it into 4 distinct, ethereal waves, each act like a breaking ocean wave 5 feet wide and 5 feet high that travel quickly away from you up to a distance of 100 feet, emanating in directions of your choice. Each wave of spectral death leaving decayed flora and dead tiny creatures in its wake. Each wave has its own direction and can overlap, but all must be within a 180 degree sector from yourself. 

Each creature within the spells area of effect must make a Wisdom save, on a failed save a creature takes 8d8 necrotic damage plus 1d8 for each additional wave they contact (up to 11d8 max), and be wracked by false sight of all its' potential deaths. Each successive turn, the creature makes a Wisdom save or has disadvantage on spells and attacks and takes 2d4 psychic damage. On a successful save the afflicted creature(s) take half damage and doesn't have disadvantage (or have to do the successive Wisdom saves). 

At Higher Levels. When using a spell slot of 6th level or higher, increase the number of necrotic rays by 1 per spell slot above 5th and recurring damage by 2d4 per level.