Huge dragon, chaotic evil

Armor Class: 18 (natural armour)

Hit Points: 178 (17d10+85) 17d10+85

Speed: 40 ft , fly: 80 ft , climb: 40 ft

STR

23 +6

DEX

10 +0

CON

21 +5

INT

14 +2

WIS

11 +0

CHA

19 +4

Saving Throws: Dexterity +4, Constitution +9, Wisdom +4, Charisma +8

Skills: Perception +8, Insight +4

Damage Immunities: Fire

Condition Immunities: Frightened, charmed, exhaustion

Senses: Blindsight 30 ft., Darkvision 120 ft., Passive Perception 18

Languages: Draconic, Common

Challenge Rating: 8

Proficiency Bonus: +4

Actions

Bite (Ground only). Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage.   Claw (Flight only). Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.   Fire Breath (Recharge 5–6). The dragon exhales fire in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 56 (16d6) fire damage on a failed save, or half as much damage on a successful one.