Keen Smell. The deathclaw has advantage on Wisdom (Perception) checks that rely on smell.

Pounce. If the deathclaw moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone. If the target is prone, the deathclaw can make one bite attack against it as a bonus action.

Rampage. When the deathclaw reduces a creature to 0 hit points with a melee attack on its turn, the deathclaw can move up to half its speed and make a bite attack.

Multiattack. The deathclaw makes two attacks: one with its bite and one with its claw.

• Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target.
  Hit: 12 (2d6 + 4) piercing damage.

• Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target.
  Hit: 10 (2d4 + 4) slashing damage.

Predatory Lunge (Recharge 5–6)

The deathclaw moves up to 15 feet in a straight line without provoking opportunity attacks. If it ends this movement within 5 feet of a creature, it has advantage on its next claw attack against that creature this turn.

Savage Follow-Up (Condition-based)

If the deathclaw scores a critical hit or reduces a creature to 0 HP on its turn, it can make one claw attack against a different creature within range as a bonus action.

Terrifying Roar (1/Day)

Each creature of the deathclaw’s choice within 10 feet that can hear it must succeed on a DC 12 Wisdom saving throw or be frightened until the end of the deathclaw’s next turn.

Lunge . The Deathclaw lunges onto enemy arm or leg to prevent them from attacking or moving for 1 turn