Gargantuan dragon, Chaotic Good
| Armor Class | 20 (natural armor) |
|---|---|
| Hit Points | 297 (17d20 + 119) |
| Speed | 40 ft., burrow 40 ft., fly 80 ft. |
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 27 (+8) | 10 (+0) | 25 (+7) | 16 (+3) | 15 (+2) | 19 (+4) |
| Saving Throws | Cha +10, Con +13, Dex +6, Wis +8 |
|---|---|
| Skills | History +9, Perception +14, Persuasion +10, Stealth +6 |
| Damage Vulnerabilities | — |
| Damage Resistances | — |
| Damage Immunities | fire |
| Condition Immunities | — |
| Senses | blindsight 60 ft., darkvision 120 ft., passive Perception 24 |
| Languages | Common, Draconic |
| Challenge | 20 |
If the dragon fails a saving throw, it can choose to succeed instead.
The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Melee Attack Roll: +14 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage.
Melee Attack Roll: +14 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
Melee Attack Roll: +14 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.
Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 18 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.
The dragon uses one of the following breath weapons:
Fire Breath The dragon exhales fire in a 90-foot line that is 10 feet wide. Each creature in that line must make a DC 21 Dexterity saving throw, taking 56 (16d6) fire damage on a failed save, or half as much damage on a successful one.
Sleep Breath The dragon exhales sleep gas in a 90-foot cone. Each creature in that area must succeed on a DC 21 Constitution saving throw or fall unconscious for 10 minutes. This effect ends for a creature if the creature takes damage or someone uses an action to wake it.
The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice).
In a new form, the dragon retains its alignment, hit points, Hit Dice, ability to speak, proficiencies, Legendary Resistance, lair actions, and Intelligence, Wisdom, and Charisma scores, as well as this action. Its statistics and capabilities are otherwise replaced by those of the new form, except any class features or legendary actions of that form.
The dragon makes a Wisdom (Perception) check.
The dragon makes a tail attack.
The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 22 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.
Gargantuan dragon (metallic), Chaotic Good
| Armor Class | 20 |
|---|---|
| Hit Points | 332 (19d20 + 133) |
| Speed | 40 ft., burrow 40 ft., fly 80 ft. |
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 27 (+8) | 10 (+0) | 25 (+7) | 16 (+3) | 15 (+2) | 22 (+6) |
| Saving Throws | Dex +6, Wis +8 |
|---|---|
| Skills | History +9, Perception +14, Persuasion +12, Stealth +6 |
| Damage Vulnerabilities | — |
| Damage Resistances | — |
| Damage Immunities | fire |
| Condition Immunities | — |
| Senses | Blindsight 60 ft., Darkvision 120 ft., passive Perception 24 |
| Languages | Common, Draconic |
| Challenge | 20 |
If the dragon fails a saving throw, it can choose to succeed instead.
The dragon makes three Rend attacks. It can replace one attack with a use of (A) Sleep Breath or (B) Spellcasting to cast Scorching Ray (level 3 version).
Melee Attack Roll: +14, reach 15 ft. Hit: 19 (2d10 + 8) Slashing damage plus 7 (2d6) Fire damage.
dex DC 21, each creature in a 90-foot-long, 5-foot-wide Line [Area of Effect]. Failure: 58 (13d8) Fire damage. Success: Half damage.
con DC 21, each creature in a 90-foot Cone [Area of Effect]. Failure: The target has the Incapacitated condition until the end of its next turn, at which point it repeats the save. 2 The target has the Unconscious condition for 10 minutes. This effect ends for the target if it takes damage or a creature within 5 feet of it takes an action to wake it.
The dragon uses Spellcasting to cast Scorching Ray (level 3 version).
The dragon moves up to half its Speed, and it makes one Rend attack.
dex DC 20, one creature the dragon can see within 120 feet. Failure: 36 (8d8) Fire damage, and the target's Speed is halved until the end of its next turn. Success or Failure: The dragon can't take this action again until the start of its next turn.
The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 20):
At will: Detect Magic, Minor Illusion, Scorching Ray (level 3 version), Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no Concentration or Temporary Hit Points required to maintain the spell), Speak with Animals
1 each/day: Control Weather, Detect Thoughts