Shield of Bats (5e Equipment)

Armor (shield), uncommon (requires attunement)

The shield has 3 charges and regains 1 expended charge daily at dawn.

Call Backup. When a melee attack misses you, you may expend 1 charge as a reaction to summon a giant bat or swarm of bats under the DMs control in an unoccupied space within 30 feet of you for 1 minute. The summoned creature is friendly to you and your companions and acts immediately after you in initiative on your turns.