Bunyip A5E
CR 8 beast
Huge beast, chaotic evil
The bunyip has advantage on saving throws against being frightened.
The bunyip can hold its breath for 1 hour.
The bunyip has advantage on Perception checks that rely on hearing or smell.
Actions
The bunyip makes a bite attack and two slam attacks.
Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 19 (2d12+6) piercing damage and the target is grappled (escape DC 17). Until this grapple ends the target is restrained and the bunyip can't bite another target.
Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 17 (2d10+6) bludgeoning damage.
Bonus Actions
The bunyip unleashes a terrifying howl. Each creature of its choice within 120 feet that can see and hear it makes a DC 17 Wisdom saving throw, becoming frightened for 1 minute on a failure. A creature repeats the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creatures saving throw is successful or the effect ends for it, the creature is immune to the bunyips Terrifying Howl for the next 24 hours.
Source: Monstrous Menagerie (EN Publishing) · License: OPEN GAME LICENSE Version 1.0a details