Dragon, Shadow Juvenile (CR 8)

Medium Dragon
Alignment: Always chaotic evil
Initiative: +0; Senses: blindsense 60 ft., darkvision120 ft., low-light vision, and keen senses
Languages: Draconic

AC: 26 (+16 natural), touch 10, flat-footed 26
Hit Dice: 13d12+26 (110 hp)
Fort +10, Ref +8, Will +12
Speed: 80 ft., fly 150 ft. (poor)
Space: 10 ft./10 ft.
Base Attack +13; Grapple +15
Attack: 1 bite +15, 2 claws +10, 2 wings +10, 1 tail slap +10
Damage: 1 bite 2d6+2, 2 claws 1d8+1, 2 wings 1d6, 1 tail slap 1d8
Special Attacks/Actions: Breath weapon 2(DC 20)
Abilities: Str 15, Dex 10, Con 15, Int 18, Wis 18, Cha 19
Special Qualities: Energy drain immunity, Shadow blend, Mirror Image, SR 17
Feats: #Feats: 5
Skills: Skill points: 58
Advancement: 14-15 HD (Large)
Climate/Terrain: Underground
Organization: Solitary (1 dragon, any age), clutch (1d4+1 wyrmlings, very young, young, juvenile, or young adults), family (pair of mature adults and 1d4+1 offspring)
Treasure/Possessions: Triple Standard

Source: Draconomicon

Breath Weapon (Su): A shadow dragons breath weapon is a cone of billowing, smoky shadows with an energy drain effect. Creatures within the cone gain 2 negative levels: the saving throw to remove the negative level is 20. A successful Reflex save (DC 20) reduces the number of negative levels by half (round down).

Shadow Blend (Su): During any conditions other than full daylight, a shadow dragon can disappear into the shadows, giving it nine-tenths concealment. Artificial illumination, even a light or continual flame spell, does not negate this ability. A daylight spell, however, will.