Xorbeast (CR 7)

Large Aberration
Alignment: Usually neutral evil
Initiative: +0; Senses: darkvision 60 ft., Listen +8, and Spot +7
Languages: understands Undercommon

AC: 19(-1 size, +10 natural), touch 9, flat-footed 19
Hit Dice: 8d8+45 (76 hp); DR: 10/slashing or piercing
Fort +9, Ref +2, Will +8
Speed: 30 ft., climb 15 ft.
Space: 10 ft./10 ft.
Base Attack +6; Grapple +17
Attack: 2 slams +12 melee
Damage: Melee 2 slams 1d6+7
Special Attacks/Actions: Power Attack, engulf, temporal stasis
Abilities: Str 24, Dex 11, Con 20, Int 3, Wis 14, Cha 9
Special Qualities: amorphous, frightful presence (60-ft. radius, DC 13); fast healing 3; Immune to acid and sonic; Resist cold 10, fire 10
Feats: Ability Focus (frightful presence), Great Fortitude, Power Attack
Skills: Climb +15, Listen +8, and Spot +7
Advancement: 9-16 HD (Large), 17-24 HD (Huge)
Climate/Terrain: Any land and underground (Eberron)
Organization: Solitary
Treasure/Possessions: None

Source: Dragon #348

Frightful Presence (Ex) The sheer bulk of a xorbeast is frightening and unsettling. Any creature within 60 feet of a charging or attacking xorbeast must make a DC 13 Will save or be shaken for 5d6 rounds. A creature that makes this save is immune to the frightful presence of that xorbeast for 24 hours. The save DC is Charisma-based.

Engulf (Ex) A xorbeast can mow down Medium or smaller creatures as a full round action. It cannot make slam attacks during a round in which it engulfs. The xorbeast merely has to move over the opponents, affecting as many as it can cover. Opponents can make attacks of opportunity against the xorbeast, but if they do so they are not entitled to a saving throw. Those who do not attempt attacks of opportunity must succeed on a DC 21 Reflex save or be engulfed; on a success, they are pushed back or aside (opponent's choice) as the xorbeast moves forward. Engulfed creatures are subject to the xorbeast's temporal stasis, and are considered to be grappled and trapped within its body. The save DC is Strength based. A xorbeast can hold up to two Medium four Small, eight Tiny, or sixteen Diminutive or smaller creatures.

Temporal Stasis (Su) A creature engulfed by a xorbeast must make a DC 18 Fortitude save or be held in temporal stasis, as the spell, for 2d4 minutes. A daelkyr within 30 feet can dismiss the effect as a free action. Creatures that successfully save against the temporal stasis of a xorbeast are immune to that xorbeast's temporal stasis for 24 hours. The save DC is Constitution-based.

Amorphous (Ex) The gelatinous body of a xorbeast protects it from attacks against vital organs. Any critical hit or sneak attack made against a xorbeast has a 50% chance of dealing damage as a normal attack.

Skills A xorbeast receives a +8 racial bonus on Climb checks and can always take 10 on a Climb check, even if rushed or threatened.