You send a number of arcane shields crafted of icy energy to guard your allies. Up to three creatures of your choice within range gain half cover for the duration of the spell. Additionally, when a chosen creature takes damage that isn't poison damage, they can use their reaction to deflect some of the impact, halving the damage against them. A creature that uses this reaction loses the benefit of this spell, shattering their shield.

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.