Dragon, Gold Young Adult (CR 13)

Huge Dragon (Fire)
Alignment: Always Lawful Good
Initiative: +0; Senses: blindsense 60 ft., darkvision120 ft., low-light vision, and keen senses
Languages: Draconic


AC: 27 (-2 size, +19 natural), touch 8, flat-footed 27
Hit Dice: 20d12+100 (230 hp); DR: 5/magic
Fort +17, Ref +12, Will +16
Speed: 60 ft., fly 200 ft. (poor), swim 60 ft.
Space: 15 ft./10 ft. (15 ft. with bite)
Base Attack +20; Grapple +38
Attack: 1 Bite +28, 2 claws +23, 2 wings +23, 1 Tail Slap +23, 1 crush +23 melee; Breath +28 ranged
Damage: 1 bite 2d8+10, 2 claws 2d6+5, 2 wings 1d8+5, 1 tail slap 2d6+15, 1 crush 2d8+15, Breath weapon 10d10 (25)
Special Attacks/Actions: Breath Weapon, fear (DC 24), SR 21
Abilities: Str 31, Dex 10, Con 21, Int 18, Wis 19, Cha 18
Special Qualities: Bless, Fire subtype, water breathing, polymorph self, CL 5
Feats: #Feats: 7
Skills: Skill points: 86 and plus Jump 20
Advancement: 21-22 HD (Huge)
Climate/Terrain: Any land and underground
Organization: Solitary or clutch (2-5)
Treasure: Double Standard

Source: Monster Manual

Combat

Breath Weapon (Su): A gold dragon has two forms of breath weapon, a cone of fire (10d10 damage, Reflex save for half damage DC 25) or a cone of weakening gas. Creatures within the latter must succeed at a Fortitude save (DC 25) or take 5 points of temporary Strength damage. Using a breath weapon is a standard action. Once a dragon breathes, it can't breathe again until 1d4 rounds later. If the dragon has more than one type of breath weapon, it still can breathe only once every 1d4 rounds. A blast from a breath weapon always starts at the dragon's mouth and extends in a direction of the dragon's choice.

Alternate Form(Su): A gold dragon can assume any animal or humanoid form of Medium size or smaller as a standard action three times per day. A dragon can remain in its animal or humanoid form until it wishes to assume a new one or return to its natural form. A true seeing spell or ability reveals the creature's natural form. A creature using alternate form reverts to its natural form when killed, but separated body parts retain their shape. A creature cannot use alternate form to take the form of a creature with a template.

Fire Subtype (Ex): Fire immunity, double damage from cold except on a successful save.

Water Breathing (Ex): The dragon can breathe underwater indefinitely and can freely use its breath weapon, spells, and other abilities while submerged (the cone of fire becomes a cone of superheated steam underwater).

Frightful Presence (Ex): A young adult or older dragon can unsettle foes with its mere presence. The ability takes effect automatically whenever the dragon attacks, charges, or flies overhead. Creatures within a radius of 150 feet are subject to the effect if they have fewer HD than the dragon (20).

A potentially affected creature that succeeds at a Will save (DC 24) remains immune to that dragon's frightful presence for one day. On a failure, creatures with 4 or fewer HD become panicked for 4d6 rounds and those with 5 or more HD become shaken for 4d6 rounds.

Dragons ignore the frightful presence of other dragons.

Fire Subtype

A creature with the fire subtype has immunity to fire. It has vulnerability to cold, which means it takes half again as much (+50%) damage as normal from cold, regardless of whether a saving throw is allowed, or if the save is a success or failure.