Dragon, Silver Young Adult (CR 12)

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


AC: 27 (-1 size, +18 natural), touch 9, flat-footed 27
Hit Dice: 19d12+76 (199 hp); DR: 5/magic
Fort +15, Ref +11, Will +15
Speed: 40 ft., fly 150 ft. (poor)
Space: 10 ft./5 ft. (10 ft. with bite)
Base Attack +19; Grapple +29
Attack: 1 Bite +24, 2 claws +19, 2 wings +19, 1 Tail Slap +19, 1 crush +19 melee; Breath +24 ranged
Damage: 1 bite 2d6+6, 2 claws 1d8+3, 2 wings 1d6+3, 1 tail slap 1d8+9, Breath weapon 10d8 (23)
Special Attacks/Actions: Breath Weapon, fear (DC 23), SR 20
Abilities: Str 23, Dex 10, Con 19, Int 18, Wis 19, Cha 18
Special Qualities: Feather fall, Cold and acid immunity, cloud-walking, polymorph self, CL 5. Can also cast cleric spells and those from the Air, Good, Law, and Sun domains as arcane spells.
Feats: #Feats: 7
Skills: Skill points: 82 and plus Jump 19
Advancement: 20-21 HD (Large)
Climate/Terrain: Temperate and warm mountains and underground
Organization: Solitary or clutch (2-5)
Treasure: Double Standard

Source: Monster Manual

Combat

Alternate Form(Su): A silver 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.

Breath Weapon (Su): A silver dragon has two types of breath weapon, a cone of cold (10d8 damage, Reflex save for half DC 23) or a cone of paralyzing gas. Creatures within the latter must succeed at a Fortitude save (DC 23) or be paralyzed for 1d6 rounds plus 5 rounds. 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.

Cloudwalking (Su): The dragon can tread on clouds or fog as though ground. The ability functions continuously but can be negated or resumed at will.

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 (19).

A potentially affected creature that succeeds at a Will save (DC 23) 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.

Air Subtype

This subtype usually is used for elementals and outsiders with a connection to the Elemental Plane Air. Air creatures always have fly speeds and usually have perfect maneuverability (see the section on Movement).