Energy Spiral

You evoke a spiral of arcane energy that fills four lines 30 feet long and 5 feet wide. The first line extends from you in a direction of your choice. The second line must extend from the end of the first line, the third line must extend from the end of the second, and so on.

Each creature within the area of the spiral must make a Dexterity saving throw, taking 5d10 force damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the number of lines increases by one for each slot level above 4th.