Dragon, Silver Very Old (CR 20)
Huge Dragon (Air)
Alignment: Always Lawful Good
Initiative: +0; Senses: blindsense 60 ft., darkvision120 ft., low-light vision, and keen senses
AC: 38 (-2 size, +30 natural), touch 8, flat-footed 38
Hit Dice: 31d12+186 (387 hp); DR: 15/magic
Fort +23, Ref +17, Will +24
Speed: 40 ft., fly 150 ft. (poor)
Space: 15 ft./10 ft. (15 ft. with bite)
Base Attack +31; Grapple +50
Attack: 1 Bite +40, 2 claws +35, 2 wings +35, 1 Tail Slap +35, 1 crush +35 melee; Breath +40 ranged
Damage: 1 bite 2d8+11, 2 claws 2d6+5, 2 wings 1d8+5, 1 tail slap 2d6+16, 1 crush 2d8+16, Breath weapon 18d8 (31)
Special Attacks/Actions: Breath Weapon, fear (DC 32), SR 27
Abilities: Str 33, Dex 10, Con 23, Int 24, Wis 25, Cha 24
Special Qualities: Control winds, Fog cloud, Feather fall, Cold and acid immunity, cloud-walking, polymorph self, CL 13. Can also cast cleric spells and those from the Air, Good, Law, and Sun domains as arcane spells.
Feats: #Feats: 11
Skills: Skill points: 223 and plus Jump 31
Advancement: 32-33 HD (Huge)
Climate/Terrain: Temperate and warm mountains and underground
Organization: Solitary, pair, or family (1-2 and 2-5 offspring)
Treasure: Double Standard
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 (18d8 damage, Reflex save for half DC 31) or a cone of paralyzing gas. Creatures within the latter must succeed at a Fortitude save (DC 31) or be paralyzed for 1d6 rounds plus 9 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 270 feet are subject to the effect if they have fewer HD than the dragon (31).
A potentially affected creature that succeeds at a Will save (DC 32) 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.
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).