Huge Dragon, chaotic neutral
Armor Class 19 (natural armor)
Hit Points 212 (17d12+102)
Speed fly +80, swim +30, walk +40
Challenge 17
Saving Throws cha +9, con +12, dex +6, wis +9
Skills stealth +6, athletics +13, perception +15
Damage Resistances cold
Damage Immunities fire
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 23
Languages Draconic, Giant
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.
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: +13 to hit, reach 10 ft., one target. Hit: 19 (2d10 + 8) piercing damage.
Claw. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
Tail. Melee Weapon Attack: +13 to hit, reach 15 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 17 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.
Cinder Breath (Recharge 5-6). The dragon exhales a 60-foot cone of superheated air filled with white-hot embers. Each creature in that area must make a DC 20 Dexterity saving throw, taking 44 (8d10) fire 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 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.
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 10 feet of the dragon must succeed on a DC 20 Dexterity saving throw or take 14 (2d6 + 7) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.
Source: Tome of Beasts 2 · OGL/Open