Deathfang (CR 3)
Alignment: Always neutral evil
Initiative: +3 (Dex}; Senses: Listen +8 and Spot +8
AC: 17 (+1 size, +3 Dex, +3 natural) touch 14, flat-footed 14
Hit Dice: 1d12 (6 hp)
Fort +0, Ref +3, Will +3
Speed: 20 ft., climb 20 ft., fly 20 ft. (average)
Space: 5 ft. (coiled)/5 ft.
Base Attack +0; Grapple -6
Attack: Bite +4 melee
Full Attack: Bite +4 melee
Damage: Bite 1d3-2
Special Attacks/Actions: Chilling bite, improved grab, constrict
Abilities: Str 6, Dex 17, Con -, Int 1, Wis 12, Cha 2
Special Qualities: Undead
Feats: Alertness; Weapon Finesse (bite)
Skills: Balance +11, Climb +12, Hide +12, Listen +8, and Spot +8
Climate/Terrain: Any land and underground
Races of Faerûn
Flying snakes can be transformed into undead horrors known as deathfangs by means of a create undead spell if the caster is of 11th level or higher. Deathfangs are often found as guardians, utterly loyal to their creator.
A deathfang can be acquired as a familiar with the Improved Familiar feat (see Chapter 1 of the FORGOTTEN REALMS Campaign Setting), beginning at 7th level if the character is of evil alignment and has the Spell Focus (Necromancy) feat.