Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of Paralyzing Breath.

Rend. Melee Attack Roll: +10, reach 10 ft. Hit: 15 (2d8 + 6) Slashing damage.

Cold Breath (Recharge 5–6). Constitution Saving Throw: DC 17, each creature in a 30-foot Cone. Failure: 49 (11d8) Cold damage. Success: Half damage.

Paralyzing Breath. Constitution Saving Throw: DC 17, each creature in a 30-foot Cone. First Failure: The target has the Incapacitated condition until the end of its next turn, when it repeats the save. Second Failure: The target has the Paralyzed condition, and it repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically.