Dexterity +6, Constitution +14, Wisdom +7, Charisma +8
Perception +13, Stealth +6
Blindsight 60 ft, Darkvision 120 ft
Common, Draconic
Cold
Traits
Legendary Resistance
If the Ancient White Dragon fails a saving throw, it can choose to succeed instead.
Legendary Actions
Ice Walk
The Ancient White Dragon can move across and climb icy surfaces without needing to make an ability check. Additionally, difficult composed of ice or snow doesn't cost it extra movement.
Actions
Bite
+14 to hit, range 15 ft. Hit: 19 (2d10 + 8) piercing damage.
Claw
+14 to hit, range 10 ft. Hit: 15 (2d6 + 8) slashing damage.
Multiattack
The Ancient White Dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Frightful Presence
Each creature of the Ancient White Dragon's choice that is within of the dragon and aware of it must succeed on a saving throw or become frightened for . 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 Ancient White Dragon's for the next 24 hours.
Tail
+14 to hit, range 15 ft. Hit: 17 (2d8 + 8) bludgeoning damage.
Cold Breath
The Ancient White Dragon exhales an icy blast of hail in a . Each creature in that area must make a saving throw, taking damage on a failed save, or half as much damage on a successful one.
Legendary Actions
Detect
The Ancient White Dragon makes a Wisdom (Perception) check.
Tail Attack
The Ancient White Dragon makes a tail attack.
Wing Attack
The Ancient White Dragon beats its wings. Each creature within of the Ancient White Dragon must succeed on a saving throw or take damage and be knocked prone. The Ancient White Dragon can then fly up to half its flying speed.