Ward Against Wild Appetites

Wondrous item, uncommon (requires attunement by a druid or ranger)

Seventeen animal teeth of various sizes hang together on a simple leather thong, and each tooth is dyed a different color using pigments from plants native to piney villages.

When a beast or monstrosity with an Intelligence of 4 or lower targets you with an attack, it has disadvantage on the attack roll if the attack is a bite. You must be wearing the necklace to gain this benefit.