Tooth Beast (CR 7)

Large Aberration
Alignment: Usually neutral
Initiative: -1 (Dex); Senses: blind, blindsight 120 ft., and Listen +19

AC: 22 (-1 size, -1 Dex, +14 natural), touch 8, flat-footed 22
Hit Dice: 8d8+40 (76 hp)
Fort +7, Ref +1, Will +6
Speed: 10 ft.
Space: 10 ft./5 ft.
Base Attack +6; Grapple +18
Attack: Claw +14 melee
Full Attack: 2 claws +14 melee (1d8+8) and bite +11 melee
Damage: claw 1d8+8, bite 1d8+4
Special Attacks/Actions: Frightful moan, pounce, rake
Abilities: Str 27, Dex 8, Con 21, Int 2, Wis 10, Cha 8
Special Qualities: sprint after fear
Feats: Multiattack; Power Attack; Weapon Focus (claw)
Skills: Hide +5, Jump -4, and Listen +19
Advancement: 9-16 HD (large); 17-24 HD (Huge)
Climate/Terrain: Underground
Organization: Solitary or pair
Treasure/Possessions: 50% goods or items

Source: Tome of Magic

Frightful Moan (Su): As a standard action, a tooth beast can emit a frightful moan. Every creature within 30 feet that hears it howl must succeed on a DC 13 Will save or be frightened for 1 round and shaken for 1 round thereafter. All tooth beasts have immunity to this attack. Frightful moan is a sonic mind-affecting fear ability, and the save DC is Charisma-based.

Pounce (Ex): If a tooth beast charges a foe, it can make a full attack, including two rake attacks.

Rake (Ex): Attack bonus +14 melee, damage 1d8+4. A tooth beast makes rake attacks by rubbing its body - and the many sharp teeth that cover it - against a foe.

Blind (Ex): A tooth beast's blindness gives it immunity to gaze attacks, visual effects and illusions, and other attack forms that rely on sight.

Blindsight (Ex): A tooth beast has blindsight out to 120 feet. Beyond that range, it treats all targets as having total concealment.

Sprint after Fear (Ex): A tooth beast can sense fear in creatures within range of its blindsight, and it can move at a speed of 60 feet (or charge at 120 feet) to end its movement next to a creature affected by any sort of fear condition. During such a charge, a tooth beast is slowed in the usual fashion when moving through squares that normally slow movement (such as difficult terrain), and it must follow all other rules for charging.

Skills: A tooth beast has a +8 racial bonus on listen checks.

A tooth beast moves as swiftly as possible to place foes within range of its frightful moan. It then uses that ability to divide and conquer, charging any foes who remain nearby before pursuing those that have fled. When it encounters foes that remain out of range, the tooth beast usually flees, hoping to either escape the encounter altogether or lure its enemies into fighting in closer quarters.