Defensive Harmony

You bestow a mystical coordination of effort upon your allies, harmonizing their defenses. Choose up to three willing creatures within range. Until the spell ends, each target gains a +2 bonus to AC.

In addition, when a target of this spell is hit by an attack, another target of this spell within 30 feet of it can use its reaction to reduce the damage taken by 1d8 + your spellcasting ability modifier.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature for each slot level above 3rd.