Ancient Blue Dragon
D&D 5e · 2014·Gargantuan Dragon·Lawful Evil
- Armor class
- 22natural armor
- Hit points
- 48126d20+208
- Challenge
- 2350,000 XP
- Proficiency
- +7
Speed 40 ft., burrow 40 ft., fly 80 ft.
| Measure | Str | Dex | Con | Int | Wis | Cha |
|---|---|---|---|---|---|---|
| Score | 29 | 10 | 27 | 18 | 17 | 21 |
| Mod | +9 | +0 | +8 | +4 | +3 | +5 |
| Save | +9 | +7 | +15 | +4 | +10 | +12 |
- Skills
- Stealth +7, Perception +17
- Damage immunities
- lightning
- Senses
- blindsight 60 ft., darkvision 120 ft., passive Perception 27
- Languages
- Common, Draconic
Traits
Legendary Resistance (3/Day)
If the dragon fails a saving throw, it can choose to succeed instead.
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
The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.
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 feet 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.