Astral Deam

A beam of Astral energie strikes from the sky into a field in range. All targets in a 20 feet cyliner must make a strength saving throw 10 +WIS modifier or take 2d8 force damage. 

The spell is gaining highter saving throws and more damage when you reach higher levels: 3d8 and 11 +WIS modifier saving throw at 5th level,  4d8 and 12 +WIS modifier at 11th level, 5d8 and 13 +WIS modifier at 17th level.