Gauth (CR 6)

Medium Aberration
Alignment: Usually lawful evil
Initiative: +6 (+2 Dex, +4 Improved Initiative); Senses: all-around vision, Listen +4, and Spot +17

AC: 19 (+2 Dex, +7 natural), touch 12, flat-footed 17
Hit Dice: 6d8+18 (45 hp)
Fort +5, Ref +4, Will +9
Speed: 5 ft., fly 20 ft. (good)
Space: 5 ft./5 ft.
Base Attack +4; Grapple +3
Attack: Eye rays +6 ranged touch and bite -3 melee
Full Attack: Eye rays +6 ranged touch and bite -3 melee
Damage: Bite 1d6-1
Special Attacks/Actions: Eye rays, stunning gaze
Abilities: Str 8, Dex 14, Con 16, Int 15, Wis 15, Cha 13
Special Qualities: flight
Feats: Alertness; Flyby Attack; Improved Initiative; Iron Will
Skills: Hide +11, Listen +4, Search +15, Spot +17, Survival +2 (+4 following tracks), and knowledge (arcana) +11
Advancement: 12-16 HD (Large); 17-33 HD (Huge)
Climate/Terrain: Cold hills
Organization: Solitary, pair, or cluster (3-6)
Treasure/Possessions: Double standard

Source: Monster Manual

Eye Rays (Su): Each of a gauth's six eye rays resembles a spell cast by an 8th-level caster. Each eye ray has a range of 100 feet and a save DC of 14. The save DCs are Charisma-based. The six eye rays include:

Sleep: This works like the spell, except that affects one creature with any number of Hit Dice (Will negates). Gauths like to use this ray against warriors and other physically powerful creatures.

Inflict Moderate Wounds: This works like the spell, causing 2d8+8 points of damage (Will half)

Dispel Magic: This works like the targeted dispel function of the spell. The gauth's dispel check is d20+8.

Scorching Ray: This works like the spell, dealing 4d6 points of fire damage (no save). A gauth creates only one fiery ray per use of this ability.

Paralysis: The target must succeed on a Fortitude save or be paralyzed for 2d10 minutes.

Exhaustion: This works like the spell ray of ray of exhaustion (no save).

Stunning Gaze (Su): Stun for 1 round, 30 feet, Will DC 14 negates. The save DC is Charisma-based. Any creature meeting the gaze of the gauth's central eye is subject to its stunning gaze attack. Since the gauth can use its eye-rays as a free action, the creature can use a standard action to focus its stunning gaze on an opponent and attack with all eye rays that bear on its foes at the same time.