Mass Shield

An shimmering barrier of magical force extends out from you in a 15-foot radius sphere and protects you and others from harm. The barrier blocks all ranged attacks and damage from area of effects, but does not stop other creatures from passing or reaching through. The barrier has 250 hit points and lasts until the start of your next turn, if the barriers hit points drops to 0 it breaks apart and vanishes. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the barriers hit points increase by 100 for each slot level above 5th.