Ancient Blue Dragon | Monsters
| Type | Dragon |
|---|---|
| Hit Points | 481 (26d20 + 208) |
| Armor Class | 22 |
| Challenge | 23, 50000 XP |
| Speed | 40 Ft., Burrow 40 Ft., Fly 80 Ft. |
| Size | Gargantuan |
| Alignment | Lawful Evil |
| Languages | Common, Draconic |
| Senses | Blindsight 60 Ft., Darkvision 120 Ft., Passive Perception 27 |
| Skills | Perception +17, Stealth +7 |
| Damage Immunities | Lightning |
| Saving Throws | Dex +7, Con +15, Wis +10, Cha +12 |
| Strength | Dexterity | Constitution | Intelligence | Wisdom | Charisma |
|---|---|---|---|---|---|
| 29 | 10 | 27 | 18 | 17 | 21 |
Description
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: +16 to hit, reach 15 ft., one target. Hit: 20 (2d10 + 9) piercing damage plus 11 (2d10) lightning damage.
Claw. Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 16 (2d6 + 9) slashing damage.
Tail. Melee Weapon Attack: +16 to hit, reach 20 ft., one target. Hit: 18 (2d8 + 9) bludgeoning damage.
Frightful Presence. Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 20 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.
Lightning Breath (Recharge 5-6). The dragon exhales lightning in a 120-foot line that is 10 feet wide. Each creature in that line must make a DC 23 Dexterity saving throw, taking 88 (16d10) lightning damage on a failed save, or half as much damage on a successful one.
Legendary Actions
Detect. The dragon makes a Wisdom (Perception) check.
Tail Attack. The dragon makes a tail attack.
Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 ft. of the dragon must succeed on a DC 24 Dexterity saving throw or take 16 (2d6 + 9) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.