Ancient White Dragon

Gargantuan Dragon chaotic evil

• Armor Class: 20 (natural armor)
• Hit Points: 333 (18d20+144)
• Speed: walk 40 ft. burrow 40 ft. fly 80 ft. swim 40 ft.
• Challenge Rating: 20 (25,000 XP)
• Source: 5.1 SRD (2015 MM), page 288

• Saving Throws: Dex +6, Con +14, Wis +7, Cha +8
• Skills: perception +13, stealth +6
• Damage Immunities: cold
• Senses: blindsight 60 ft., darkvision 120 ft., passive Perception 23
• Languages: Common, Draconic

Special Abilities

• Ice Walk: The 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 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: +14 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 9 (2d8) cold damage.
• Claw: Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
• Tail: Melee Weapon Attack: +14 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 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 Breath (Recharge 5-6): The 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.

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.

Legendary Actions

• 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 ft. of the dragon must succeed on a DC 22 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.

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