Axe Beak Tomahawk

Weapon (handaxe), uncommon

This magic handaxe is made from the remains of a slain axe beak. The first time on your turn that you hit a creature that has a flying speed with an attack using this axe, that creature is forced to make a DC 13 Strength saving throw. Each time that a creature fails this saving throw, that creature's flying speed is reduced by 15 feet for 1 minute.

A fox in the hen house.