Zombie Young Adult White Dragon* (CR 5)

Large Undead
Alignment: Always neutral
Initiative: +4; Senses: blindsense 60 ft., darkvision 120 ft., and keen senses

AC: 15 (-1 size, -1 Dex, +7 natural), touch 8, flat-footed 15
Hit Dice: 15d12+33 (130 hp); DR: 5/slashing
Fort +9, Ref +8, Will +9
Speed: 60 ft., burrow 30 ft., fly 200 ft. (clumsy), swim 60 ft.
Space: 10 ft./5 ft. (10 ft. with bite)
Base Attack +15; Grapple +23
Attack: Bite +18 melee
Full Attack: Bite +18 melee and 2 claws +13 melee and 2 wings +13 melee
Damage: Bite 2d6+4, claws 1d8+2, wings 1d6+2
Special Attacks/Actions: Breath weapon, frightful presence
Abilities: Str 19, Dex 8, Con -, Int -, Wis 11, Cha 2
Special Qualities: icewalking, immunity to cold, keen senses, slow, SR 16, undead traits
Feats: Toughness
Skills: Swim +4
Advancement: Up to +2 HD
Climate/Terrain: Cold mountains
Organization: Any
Treasure/Possessions: None

Source: Draconomicon

Breath Weapon (Su): 40-ft. cone 2d6 cold, Reflex DC 13 halves.

Frightful Presence (Ex): 150-ft. radius, HD 14 or fewer, Will DC 14 negates.

Icewalking (Ex): This ability works like the spider climb spell, but the surfaces the dragon climbs must be icy. It is always in effect.

Keen Senses (Ex): A zombie dragon sees four times as well as a human in shadowy illumination and twice as well in normal light also has darkvision out to 120 ft.

Skills: This zombie dragon has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.

The zombie white dragon possesses none of the animalistic ferocity it had in life. It merely acts according to the (simple) orders given it by its master. Its blindsense and keen senses make it an excellent guardian, and its icewalking ability allows it to perch in difficult-to-reach places.

A zombie white dragon can often be found guarding the lairs of frost giant adepts or clerics. Colder climates also slow the rotting process, keeping the zombie white dragon intact for a longer time.