based on D&D 5th Edition
Ancient White Dragon
Gargantuan  Dragon , Chaotic Evil

Armor Class 20  (natural)
Hit Points 333  (18d20+144)
Speed 40 ft. , burrow 40 ft. , fly 80 ft. , swim 40 ft.



STR DEX CON INT WIS CHA
26  (+8) 10  (0) 26  (+8) 10  (0) 13  (+1) 14  (+2)
Saving Throws Dex +6, Con +14, Wis +7, Cha +8
Damage Immunities Frost
Senses blindsight,darkvision, passive Perception 23
Languages Common, Draconic
Challenge 20  (0 XP)
Legendary Resistance. (3/day) automatic succeed on save after failure.
Actions
Multiattack. Uses Frightful Presence, then makes one bite and two claw attacks.
Bite. Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 19 (2d10 +8) piercing damage.
Bite+. 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.
Cold Breath. (Recharge 5-6) DC 22 constitution saving throw, half damage on successful save, for 72 (16d8) cold damage in 90 ft. Cone
Frightful Presence. DC 16 Wisdom saving throw, frightened. Save at end of each turn, successful save creature becomes immune. in 120 Area
Wing Attack. DC 22 dexterity saving throw or take damage and knocked prone., for 15 (2d6+8) bludgeoning damage in ft. Melee