Large Dragon, Chaotic Evil
Actions
Multiattack. The dragon makes three Rend attacks.
Rend. Melee Attack Roll: +10, reach 10 ft. Hit: 13 (2d6 + 6) Slashing damage plus 3 (1d6) Fire damage.
Fire Breath (Recharge 5–6). Dexterity Saving Throw: DC 17, each creature in a 30-foot Cone. Failure: 56 (16d6) Fire damage. Success: Half damage.
Found on p.254 of MM2025 (Free Rules)