Amphibious. The dragon can breathe air and water.

Bulldoze. The dragon can burrow until escaping or reaching a target.

Telepathy (120 ft.). The dragon can telepathically communicate with any living creature within range.

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 4) piercing damage plus 4 (1d8) acid damage.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d4 + 4) slashing damage.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 30­-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 39 (11d6) acid damage on a failed save, or half as much damage on a successful one.

If provoked to attack through failed discussion, can attack with breath attack and then a bite.

If adventurers approach it tries to communicate and negotiate with them to leave it alone. Then warns them. Then attacks them.