lg huge cold dragon 

Perception +26; darkvision, fog vision, scent (imprecise) 60 feet

Languages Auran, Common, Draconic, Dwarven

Skills Acrobatics +21, Athletics +27, Diplomacy +25, Intimidation +27, Medicine +24, Religion +24, Society +20

Str +7 Dex +3 Con +4 Int +3 Wis +4 Cha +5

Fog Vision The silver dragon ignores the concealed condition from fog and clouds.

AC  37; Fort +26, Ref +23, Will +28; +1 status to all saves vs. magic

HP 295; Immunities cold, paralyzed, sleep; Weaknesses fire 10

Frightful Presence (aura, emotion, fear, mental) 90 feet, DC 33

Wing Deflection [R] Trigger The silver dragon is targeted with an attack. Effect The dragon raises its wing, gaining a +2 circumstance bonus to AC against the triggering attack. If the dragon is flying, it descends 10 feet after the attack is complete.

Speed 50 feet, fly 140 feet; cloud walk

Melee [>] jaws +29 (cold, magical, reach 15 feet), Damage 3d10+13 piercing plus 3d6 cold

Melee [>] claw +29 (agile, magical, reach 10 feet), Damage 3d8+13 slashing

Melee [>] tail +27 (magical, reach 20 feet), Damage 2d10+11 bludgeoning

Arcane Innate Spells DC 33; 1st detect alignment (evil only)

Breath Weapon [>>] The silver dragon breathes in one of two ways. The dragon can't use Breath Weapon again for 1d4 rounds.

• Frost (arcane, cold, evocation); The dragon breathes a cloud of frost in a 40-foot cone that deals 15d6 cold damage (DC 35 basic Reflex save).
• Paralyzing Gas (arcane, enchantment, incapacitation); The dragon breathes a blast of paralyzing gas. Each creature within a 40-foot cone must succeed at a DC 35 Fortitude save or be slowed 2 for 1 round (or paralyzed for 2 round on a critical failure).

Cloud Walk The silver dragon can tread on clouds or fog as though on solid ground.

Draconic Frenzy [>>] The silver dragon makes two claw Strikes and one tail Strike in any order.

Draconic Momentum When the silver dragon scores a critical hit with a Strike, it recharges its Breath Weapon.

Bestiary, page 126.