Barrage Shelter

2nd-level abjuration
Casting time: 1 action
Range: 90 feet (10-foot radius)
Target: Every creature in a 10-foot radius within range
Components: V, S, M (a buckler, and a wooden arrow which is consumed upon casting)
Duration: Concentration, up to 1 minute
Classes: Cleric, Paladin, Ranger, Wizard
Subclasses:

An area within range that you choose becomes covered by a sudden barrier of force. For the duration every creature in a 10-foot-radius benefits from half cover when targeted by magical ranged attacks, and cannot be targeted by nonmagical ranged attacks.