Multiattack

The sandwyrm makes one bite attack and one stinger attack. It can gore in place of the bite attack.

Bite

Melee Weapon Attack: +8 to hit, reach 5 ft., one creature. Hit: 12 (2d6 + 5) piercing damage.

Gore

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 11 (1d12 + 5) piercing damage.

Stinger

Melee Weapon Attack: +8 to hit, reach 10 ft., one creature. Hit: 12 (2d6 + 5) piercing damage plus 24 (7d6) poison damage, or half as much poison damage with a successful DC 15 Constitution saving throw. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned and paralyzed for 1 hour. Regaining hit points doesn't end the poisoning or paralysis.