Magic Weapons. The zaratan’s weapon attacks are magical.

Siege Monster. The elemental deals double damage to objects and structures.

Multiattack. The zaratan makes two attacks: one with its bite and one with its stomp.

Bite. Melee Weapon Attack: +11 to hit, reach 20 ft., one target. Hit: 20 (3d8 + 7) piercing damage.

Stomp. Melee Weapon Attack: +11 to hit, reach 20 ft., one target. Hit: 18 (2d10 + 7) bludgeoning damage.

Spit Rock. Ranged Weapon Attack: +11 to hit, range 120 ft./240 ft., one target. Hit: 25 (4d8 + 7) bludgeoning damage.

Spew Debris (Recharge 5–6). The zaratan exhales rocky debris in a 60-foot cube. Each creature in that area must make a DC 19 Dexterity saving throw. A creature takes 22 (4d10) bludgeoning damage on a failed save, or half as much damage on a successful one. A creature that fails the save by 5 or more is knocked prone.

Ground-Shaking Movement. As a bonus action after moving at least 10 feet on the ground, the zaratan can send a shock wave through the ground in a 60-foot-radius circle centered on itself. That area becomes difficult terrain for 1 minute. Each creature on the ground that is concentrating must succeed on a DC 19 Constitution saving throw or the creature’s concentration is broken.

The zaratan can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The zaratan regains spent legendary actions at the start of its turn.

Stomp. The zaratan makes one stomp attack.

Move. The zaratan moves up to its speed.

Spit (Costs 2 Actions). The zaratan uses Spit Rock.

Retract (Costs 2 Actions). The zaratan retracts into its shell. Until it takes its Emerge action, it has resistance to all damage, and it is restrained. The next time it takes a legendary action, it must take its Revitalize or Emerge action.

Revitalize (Costs 2 Actions). The zaratan can use this option only if it is retracted in its shell. It regains 32 (5d12) hit points. The next time it takes a legendary action, it must take its Emerge action.

Emerge (Costs 2 Actions). The zaratan emerges from its shell and uses Spit Rock. It can use this option only if it is retracted in its shell.