Ancient White DragonCR 20 · Gargantuan Dragon · Stat Block & Encounter Builder

Gargantuan dragon, Challenge 20. AC 20, 333 hit points.

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Armour Class

Hit Points

333

Speed

40 ft.

Challenge

20 · 25,000 XP

Alignment

Chaotic Evil

The card

Stat Block

Gargantuan Dragon · Chaotic Evil

Ancient White Dragon

333

18d20 + 144 · 40 ft., burrow 40 ft., fly 80 ft., swim 40 ft. · AC from natural armor

Blindsight 60 ft., Darkvision 120 ft., passive Perception 23

Languages: Common, Draconic

STR	DEX	CON	INT	WIS	CHA
26 (+8)	10 (+0)	26 (+8)	10 (+0)	13 (+1)	14 (+2)

Traits

Damage ImmunitiesCold

Ice WalkThe dragon can move across and climb icy surfaces without needing to make an ability check. Additionally, difficult terrain composed of ice or snow doesn't cost it extra movement.

Legendary ResistanceIf the dragon fails a saving throw, it can choose to succeed instead.

Actions

MultiattackThe dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

BiteMelee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 9 (2d8) cold damage.

ClawMelee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.

TailMelee Weapon Attack: +14 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.

Frightful PresenceEach creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 16 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 .

Cold BreathThe dragon exhales an icy blast in a 90-foot cone. Each creature in that area must make a DC 22 Constitution saving throw, taking 72 (16d8) cold damage on a failed save, or half as much damage on a successful one.

How to actually run it

Tactics

The stat block tells you what it can do. This tells you what to do with it.

1Multiattack: The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

2Legendary Resistance means it can auto-pass failed saves a few times a day. Expect your first control spells to be shrugged off — plan around it.

3It is a legendary creature with 3 legendary actions between turns; fight it in its lair and it is far more dangerous than the stat block alone.

Pitch the fight

Encounter Difficulty

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How bad is this fight?

Real DMG maths — XP thresholds by level, and the group multiplier that makes crowds so much worse than the raw total suggests.

Ancient White Dragons4Party size4Party level3

Could kill someone — and at high enough numbers, the whole party.

Difficulty

Deadly

200,000 adj. XP · ×2

deadly at 1,600

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Counsel

Ancient White Dragon, Answered

What is Ancient White Dragon's challenge rating in D&D 5e?

Ancient White Dragon is Challenge 20, worth 25,000 XP. Encounter maths multiplies XP by the number of monsters, so a group is deadlier than the raw total — use the calculator on this page.

What are Ancient White Dragon's stats?

AC 20 (natural armor), 333 hit points (18d20 + 144), speed 40 ft., burrow 40 ft., fly 80 ft., swim 40 ft.. Ability scores: STR 26, DEX 10, CON 26, INT 10, WIS 13, CHA 14.

What is Ancient White Dragon resistant to?

Ancient White Dragon is immune to cold damage. Pick a damage type it does not shrug off.

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