Area Shield

You create a translucent barrier covering an area around you. When a spell or effect forces you to make a dexterity saving throw, you and any number of creatures within 10 feet of you may add a bonus equal to your spellcasting ability modifier to the roll.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the affected radius increases by 5 feet for every two slot levels above 3rd.