Multiattack. The dragon makes two attacks: one with its bite or breath and one with its tail.

Bite. Melee Weapon Attack: ] -3 to hit, reach 10 ft., one target. Hit: 15 [rollable](3d10 + 5) piercing damage  

 Tail. Melee Weapon Attack: +8; to hit, reach 25 ft., one target. Hit: 15 (2d6 + 1) peircing damage. On a hit target must roll a dc 14  con saving throw on a fail target gets paralyzed for 1d4 turns

Sandstorm Breath (Recharge 5–6). The dragon sews a fog like Puff of sand in a 40-foot cone the puff lasts for 1d4 turns. Each creature in that area must make a DC 16 Constitution saving throw each at the start of their turns  ,on a fail target takes 2d4 bludgeoning damage and is blinded until the start of the next turn