Vengeful Sorrow. When a Jeuvenile Bulette that the Bulette Matriarch can see is reduced to 0 hit points, the Bulette Matriarch gains advantage on attack rolls, and all attacks against the Bulette Matriarch have advantage. This effect lasts until the Bulette Matriarch becomes unconscious, or until the end of the encounter.

Multiattack. The Bulette Matriarch makes two Bite attacks.

Bite. Melee Attack Roll: +7, reach 5 ft. Hit: 17 (2d12 + 4) Piercing damage.

Deadly Leap. The Bulette Matriarch spends 5 feet of movement to jump to a space within 15 feet that contains one or more Large or smaller creatures. Dexterity Saving Throw: DC 15, each creature in the Bulette Matriarch's destination space. Failure: 19 (3d12) Bludgeoning damage, and the target has the Prone condition. Success: Half damage, and the target is pushed 5 feet straight away from the Bulette Matriarch

Leap. The Bulette Matriarch jumps up to 30 feet by spending 10 feet of movement.

Enrage. When the Bulette Matriarch is reduced to half its hit points or fewer, it uses its burrow speed to dive under ground, and gains resistance to bludgeoning, piercing, slashing, force, and psychic damage until it becomes unconscious, or until the end of the encounter.

Maternal Fury. When a Jeuvenile Bulette that the Bulette Matriarch can see is reduced to half its hit points or fewer, the Bulette Matriarch uses the Deadly Leap action targeting the space of the last creature to deal damage to the Jeuvenile Bulette.