Behir (CR 8)
Huge Magical Beast
Alignment: Often neutral
Initiative: +1 (Dex); Senses: darkvision 60 ft., low-light vision, scent, Listen +4, and Spot +7
AC: 20 (-2 size, +1 Dex, +11 natural), touch 9, flat-footed 15
Hit Dice: 9d10+45 (94 hp)
Fort +11, Ref +7, Will +5
Speed: 40 ft., climb 15 ft.
Space: 15 ft./10 ft.
Base Attack +9; Grapple +25
Attack: Bite +15 melee
Full Attack: Bite +15 melee
Damage: Bite 2d4+12
Special Attacks: Breath weapon, constrict 2d8+8, improved grab, rake 1d4+4, swallow whole
Abilities: Str 26, Dex 13, Con 21, Int 7, Wis 14, Cha 12
Special Qualities: Cannot be tripped, immunity to electricity
Feats: Alertness; Cleave; Power Attack; Track
Skills: Climb +16, Hide +5, Listen +4, Spot +7, and Survival +2
Advancement: 10-13 HD (Huge); 14-27 HD (Gargantuan)
Climate/Terrain: Warm Hills
Organization: Solitary or pair
Treasure/Possessions: Standard
Source:
Monster Manual
The behir is a snakelike monster whose dozen legs allow it to move with considerable speed.
A behir is about 40 feet long and weighs about 4,000 pounds. It can fold its limbs close to its long, narrow body and slither in snake fashion if it desires. The head looks more crocodilian than snakelike, but the mouth can open wide enough to swallow prey whole, as a snake's does.
Behirs have band-like scales of great hardness. Their color ranges from ultramarine to deep blue with bands of gray-brown. The belly is pale blue. The two large horns curving back over the head look dangerous but are actually used for preening the creature's scales, not for fighting.
Behirs are never friendly with dragonkind and won't coexist with any type of dragon. If one enters a behir's territory, the behir does everything it can to drive the dragon out. If the behir fails, it moves off to find a new home. A behir never knowingly enters the territory of a dragon.
Behirs speak Common.
Combat
A behir usually bites and grabs its prey first, then either swallows or constricts the opponent. If beset by a large number of foes, it uses its breath weapon.
Breath Weapon (Su): Line of lightning 5 feet wide, 5 feet high, and 20 feet long once a minute; damage 7d6. Reflex half DC 19.
Improved. Grab (Ex): To use this ability, the behir must hit with its bite attack. If it gets a hold, it can attempt to swallow or constrict the opponent.
Swallow Whole (Ex): A behir can try to swallow a grabbed Medium-size or smaller opponent by making a successful grapple check. A behir that swallows an opponent can use its Cleave feat to bite and grab another opponent.
The swallowed creature takes 2d8+8 points of crushing damage and 8 points of acid damage per round from the behir's gizzard. A swallowed creature can also cut its way out by using claws or a Small or Tiny slashing weapon to deal 25 points of damage to the gizzard (AC 20). Once the creature exits, muscular action closes the hole; another swallowed opponent must again cut its own way out.
The behir's gizzard can hold two Medium-size, four Small, eight Tiny, sixteen Diminutive, or thirty-two Fine or smaller opponents.
Constrict (Ex): A behir deals 2d8+8 damage with a successful grapple check against Gargantuan or smaller creatures. It can use its claws against the grappled foe as well.