A creature that starts its turn within 5 feet of the alnaar must make a DC 16 Constitution saving throw, taking 14 (4d6) fire damage on a failed save, or half as much damage on a successful one. A creature that touches the alnaar or hits it with a melee attack while within 5 feet of it takes 7 (2d6) fire damage. Nonmagical weapons and objects with Armor Class 15 or lower are immediately destroyed after coming into contact with the alnaar’s skin. Weapons that hit the alnaar deal their damage before being destroyed. This trait is suppressed if the alnaar is starving.

If an alnaar hasn’t fed on a Medium-sized or larger creature within the last 12 hours, it is starving. While starving, the alnaar’s Armor Class is reduced by 2, it has advantage on melee attack rolls against any creature that doesn’t have all of its hp, and will direct its attacks at a single foe regardless of tactical consequences. Once it feeds on a Medium-sized or larger corpse or brings a Medium-sized or larger creature to 0 hp, it is no longer starving.