Keen Hearing and Smell. The cú has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.
Invisibility. (Recharge 6) The cú turns invisible for one minute or until it takes the attack action or uses its Death Howl.
Death Howl. The cú howls. Any beast or humanoid within 300 feet of the cú and able to hear its howl must succeed on a DC 13 Wisdom saving throw or suffer one of the following effects:
- A creature that fails its saving throw for the first time is frightened for 1 minute.
- A creature that was frightened in this way is knocked unconscious for 1 the same duration.
- A target that was knocked unconscious in this way must succeed on a DC 13 Constitution saving throw or die.
A target suffering one of these effects can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target's saving throw is successful, the target is immune to any shadow mastiff's Terrifying Howl for the next hour.
Comments