Monsters of the shadow realm (part 1?)

Shadow Dragon 

Armour Class    -2 [21]

Hit Dice    6+1** (31hp)

Attacks    [2 × claw (1d4), 1 × bite (3d4)] or breath

THAC0    14 [+5]

Movement    90’ (30’) / 240’ (80’) flying

Saving Throws    D10 W11 P12 B13 S14 (6)

Morale    9

Alignment    Chaotic

XP    725

Number Appearing    1d2 (1d2)

Treasure Type    H

Breath weapon: Cloud of darkness.

Language and spells: 90%; 3 × 1st level.

Sleeping: 50% in daylight, 10% otherwise.

Hiding: Shadow dragons have a 5-in-6 chance to hide in shadows.