- Armor Class: 21 (Natural Armor)
- Hit Points: 350 (20d20 + 140)
- Speed: 40 ft., climb 40 ft., fly 80 ft.
- Saving Throws DEX +8, CON +14, WIS +10, CHA +11
- Skills Deception +11, Perception +17, Stealth +8
- Damage Immunities Acid
- Senses Blindsight 60 ft., Darkvision 120 ft., Passive Perception 27
- Languages Common, Draconic
- Challenge 21 (33,000 XP)
- Proficiency Bonus +7
Actions
- Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
- Bite. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage.
- Claw. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
- Tail. Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.
- Breath Weapons (Recharge 5–6). The dragon uses one of the following breath weapons.
Legendary Actions
- Detect. The dragon makes a Wisdom (Perception) check.
- Tail Attack. The dragon makes a tail attack.
| STR | DEX | CON | INT | WIS | CHA |
| 27 (+8) | 12 (+1) | 25 (+7) | 20 (+5) | 17 (+3) | 19 (+4) |
Attributes
| AC | 21 (Natural Armor) |
| Alignment | Chaotic Good |
| CHA | 19 |
| CON | 25 |
| Challenge Rating | 21 |
| DEX | 12 |
| HP | 350 (20d20+140) |
| INT | 20 |
| Immunities | Acid |
| Languages | Common, Draconic |
| Passive Perception | 27 |
| Roll 0 | Bite 1d20 + 15 2d10+8 |
| Roll 1 | Claw 1d20 + 15 2d6+8 |
| Roll 2 | Tail 1d20 + 15 2d8+8 |
| Roll 3 | Acid Breath 1d20 + 0 14d8 |
| STR | 27 |
| Saving Throws | Dex +8, Con +14, Wis +10, Cha +11 |
| Senses | Blindsight 60 Ft., Darkvision 120 Ft. |
| Size | Gargantuan |
| Skills | Deception +11, Perception +17, Stealth +8 |
| Speed | 40 ft., climb 40 ft., fly 80 ft. |
| Type | dragon |
| WIS | 17 |