Dungeon Dragon, Adult

Family: Dragon - Dungeon

Huge dragon, neutral

Armor Class 18 (natural armor)
Hit Points 364 (27d12 + 189)
Speed 40 ft., fly 80 ft.

STR	DEX	CON	INT	WIS	CHA
27 (+8)	10 (+0)	25 (+7)	16 (+3)	17 (+3)	21 (+5)

Saving Throws Dexterity +5, Constitution +12, Wisdom +8, Charisma +10
Skills Arcana +8, History +8, Insight +8, Investigation +13, Perception +13, Survival +8
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 23
Languages all
Challenge 16 (15,000 XP)

Special Traits

• Special Equipment. The dragon is attuned to a crystal ball, which is hidden somewhere within its labyrinthine lair. If a dungeon dragon loses its crystal ball, it can create a new one over the course of 10 days.
• Innate Spellcasting. The dungeon dragon’s innate spellcasting ability is Charisma (spell save DC 18, +10 to hit with spell attacks). It can cast the following spells, requiring no material components.
  • At will: alarm, arcane lock, detect magic, detect thoughts, find traps, glyph of warding, identify, knock, scrying, stone shape, wall of stone
  • 3/day each: dispel magic, hallucinatory terrain, locate creature, locate object, project image
• Labyrinthine Recall. The dungeon dragon can perfectly recall any path it has traveled.
• Legendary Resistance (3/day). If the dragon fails a saving throw, it can choose to succeed instead.
• Trap Master. The dungeon dragon has advantage on saving throws against the effects of traps.

Actions

• Multiattack. The dragon uses its Frightful Presence and makes three attacks: one with its bite and two with its claws.
• Bite. Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage.
• Claw. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
• Tail. Melee Weapon Attack: +13 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) 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 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.
• Confusion Breath (Recharge 5-6). The dragon exhales gas in a 60-foot cone that spreads around corners. Each creature in that area must succeed on a DC 20 Constitution saving throw. On a failed save, the creature is confused for 1 minute. While confused, the creature uses its action to Dash in a random direction, even if that movement takes the creature into dangerous areas. A confused creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.

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 21 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.