Crystal Torrent

You fire a mass of crystal shards from your arcane focus in a line 100 feet long and 5 feet wide. Each creature that start sits turn in the line takes 10d4 force damage.
On subsequent turns until the spell ends, you can use your action to continue firing. When you continue firing, you can choose to change the direction of the line. If you move or take another action, the spell ends.
At Higher Levels.
When you cast this spell using a spell slot of 7th level or higher, the damage increases by 1d4 for each slot above 6th.