Ancient Sapphire Dragon

If the dragon fails a saving throw, it can choose to succeed instead.

The dragon can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

The dragon can burrow through solid rock at half its burrowing speed and can leave a 20-foot-diameter tunnel in its wake.

The dragon makes one Bite attack and two Claw attacks.

Melee Weapon Attack +15 to hit, reach 15 ft., one target. 19 (🎲2d10 + 8) 🏹 Piercing damage plus 11 (🎲2d10) 🔊 Thunder damage.

Melee Weapon Attack +15 to hit, reach 10 ft., one target. 15 (🎲2d6 + 8) 🗡️ Slashing damage.

The dragon exhales a pulse of high-pitched, nearly inaudible sound in a 90-foot cone. Each creature in that area must make a DC 23 Constitution saving throw. On a failed save, the creature takes 55 (🎲10d10) 🔊 Thunder damage and is Incapacitated until the end of its next turn. On a successful save, the creature takes half as much damage and isn't Incapacitated.

The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit points or uses a bonus action to end it.

The dragon magically teleports to an unoccupied space it can see within 60 feet of it.

The dragon makes one Claw attack.

The dragon uses Psychic Step or Spellcasting.

The dragon chooses one Medium or smaller object that isn't being worn or carried that it can see within 60 feet of it, and it magically hurls the object at a creature it can see within 60 feet of the object. The target must succeed on a DC 20 Dexterity saving throw or take 42 (🎲12d6) 🔨 Bludgeoning damage.