Belmazog

Breath Weapon (acid, arcane) — Belmazog spews a gout of acid that deals 10d6 acid damage in a 30-foot cone (DC 28 Reflex save).

Belmazog can't use Breath Weapon again for 1d4 rounds.

Drowning Drone (auditory, mental, sonic) —

Nul-Acrumi Vazghul Ritual — This rare and highly specialized ritual, taught to Belmazog by the Scarlet Triad, allowed her to use the fossilized remains of Dahak to erect powerful defenses in the region in the form of dragon pillars, but the resources and time required to perform the ritual again are not available to Belmazog during the course of this adventure. As a result, and since there is no way for the PCs to learn or benefit from the ritual, further information beyond the repercussions detailed in the adventure itself are not presented here.

Swamp Stride — Belmazog ignores difficult terrain caused by swamp terrain features.

Terrifying Croak (auditory, emotion, fear, mental) — Belmazog unleashes a terrifying croak. Any non-boggard within 30 feet becomes Frightened 1 unless they succeed at a DC 28 Will save; those who critically succeed are temporarily immune for 1 minute.

Tongue Grab — If Belmazog hits a creature with her tongue, that creature becomes Grabbed by Belmazog. Unlike with a normal grab, the creature isn't Immobilized, but it can't move beyond the reach of Belmazog's tongue. A creature can sever the tongue by hitting AC 25 and dealing at least 8 slashing damage. Though this doesn't deal any damage to Belmazog, it prevents her from using her tongue Strike until she regrows her tongue, which takes a week.