SRD51Wiki/Monsters/Ancient Blue Dragon (Chromatic).md
2022-10-23 19:44:19 -05:00

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# Ancient Blue Dragon (Chromatic)
*Gargantuan dragon, lawful evil*
**Armor Class** 22 (natural armor)
**Hit Points** 481 (26d20+208)
**Speed** 40 ft., burrow 40 ft., fly 80 ft.
| STR | DEX | CON | INT | WIS | CHA |
|---------|---------|---------|---------|---------|---------|
| 29 (+9) | 10 (+0) | 27 (+8) | 18 (+4) | 17 (+3) | 21 (+5) |
**Saving Throws** Dex +7, Con +15, Wis +10, Cha +12
**Skills** Perception +17, Stealth +7
**Damage Immunities** lightning
**Senses** blindsight 60 ft., darkvision 120 ft., passive Perception 27
**Languages** Common, Draconic
**Challenge** 23 (50,000 XP)
***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.