You protect one creature that takes acid, cold, fire, lightning, or thunder within range. The target gains resistance the triggering damage, including the triggering source, for the duration.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can affect one additional creature for each slot level above 3rd. The creatures must be within 30 feet of each other and all take the triggering damage when you target them.