The bouda can use its action to polymorph into a human, a hyena, or its true form, which is a hyena-humanoid hybrid. Its statistics, other than its Mephitic Claw attack, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if destroyed, before turning to dust.

The bouda can secrete a disgusting whitish-yellow substance with the viscosity of tar to mark food and territory. As a bonus action, the bouda marks a single adjacent 5-foot space, object, or helpless creature. Any living creature within 30 feet of the smear at the start of its turn must succeed on a DC 15 Constitution saving throw against poison or be poisoned for 1d6 rounds. A creature that makes a successful saving throw is immune to that particular bouda’s defiling smear for 24 hours. The stench of a smear remains potent for one week.