Multiattack. The chimera makes one Bite attack, one Horns attack, and one Claws attack. It can replace its Bite attack with a use of Acid Breath or Unnerving stare (if available).

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 19 (6d4 + 4) piercing damage plus 5 (2d4) acid damage.

Horns. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Acid Breath (Recharge 5–6). The dragon head exhales acid in a 15-­foot line that is 5 feet wide. Each creature in that line must make a DC 15 Dexterity saving throw, taking 33 (6d10) acid damage on a failed save, or half as much damage on a successful one.

Unnerving Stare (3/Day). The pupils on one of the chimera's heads roll back and stare at a creature it can see within 40 feet of itself. The target must succeed on a DC 15 Charisma saving throw or take 26 (4d12) psychic damage and be frightened of the chimera for 1 minute. If the target fails its save by 5 or more, it is also paralyzed for the same duration. The target can repeat the saving throw at the end of each of its turns on a success. A creature that succeeds on the save or has the effect end for it is immune to the chimera's Unnerving Stare for 24 hours.