Vasuthant, Horrific (CR 17)

Huge Undead
Alignment: Always chaotic evil
Initiative: +10 (+6 Dex, +4 Improved Initiative); Senses: blindsight, darkvision 60 ft., Spot +29, and listen +29
Languages: No language

AC: 24 (-2 size, +6 Dex, +10 natural), touch 14, flat-footed 16
Hit Dice: 25d12+150 (312 hp); DR: 15/magic
Fort +8, Ref +14, Will +17
Speed: Fly 30 ft. (perfect)
Space: 15 ft./15 ft.
Base Attack +12; Grapple +35
Attack: Slam +21 melee
Full Attack: 2 slams +21 melee and up to 4 enervating crushes
Damage: Slam 2d8+11/19-20, enervating crush 4d6+11 plus 1d8 Str
Special Attacks/Actions: Enervating crush, improved grab, reality distortion, spell-like abilities
Abilities: Str 32, Dex 23, Con -, Int 10, Wis 16, Cha 23
Special Qualities: +2 turn resistance, alter past, immunity to acid and cold, immunity to light, resistance to fire 25 and electricity 25, trap light, undead traits, unholy toughness
Feats: Alertness; Awesome Blow; Flyby Attack; Improved Bull Rush; Improved Critical (slam); Improved Grapple; Improved Initiative; Improved Overrun; Improved Sunder; Power Attack
Skills: Concentration +28, Hide +22*, Move Silently +28, Spot +29, and listen +29
Advancement: 26-34 HD (Huge); 35-48 HD (Gargantuan)
Climate/Terrain: Any
Organization: Solitary
Treasure/Possessions: None

Source: Monster Manual III

A horrific vasuthant has the same abilities as a normal vasuthant except as noted below.

Reality Distortion (Ex): A horrific vasuthant can use this ability at will, but no more than once per round.

Spell-Like Abilities: 4/day - levitate, slow (DC 19), telekinesis (DC 21), waves of fatigue; 2/day - reverse gravity (DC 23), waves of exhaustion; 1/day - temporal stasis (DC 24), time stop. Caster level 17th.

Alter Past (Su): As a free action, a horrific vasuthant can produce a rift in time that enables it to replay its last turn. The vasuthant returns to the position it occupied when its turn began, and any effects that occurred during that time are reversed (including any readied actions or attacks of opportunity that its actions provoked). If it used any spell-like abilities, it regains the daily uses spent. A horrific vasuthant can use this ability three times per day, but no more than once per round.

Trap Light (Ex): A horrific vasuthant effectively absorbs nearby magical and non-magical light, creating a 120-foot emanation of shadow. All creatures within this area, including the horrific vasuthant, gain concealment. Creatures with darkvision can see normally within the area of the emanation, light sources within the area are suppressed, nor dispelled. If a horrific vasuthant moves out of range before the light source's duration expires, the light source illuminates again (though its illumination still cannot extend within the area of the horrific vasuthant's trap light effect).

Unholy Toughness (Ex): A horrific vasuthant gains a bonus to its hit points equal to its Charisma modifier x its Hit Dice.

Skills: Horrific vasuthants have a +2 racial bonus on listen checks and Spot checks. *A horrific vasuthant gains a +4 racial bonus on Hide checks in areas of shadowy illumination. In areas of bright illumination, it takes a -4 penalty on Hide checks.

A horrific vasuthant has grown massive and terrifying after centuries of absorbing life energy. Horrific vasuthants have more potent reality distortion powers than ordinary vasuthants, in addition to spell-like abilities.

A Huge horrific vasuthant is 15 feet in diameter. As it advances in Hit Dice and becomes larger, its diameter increases to 20 feet at Gargantuan size and 30 feet at Colossal size. Horrific vasuthants are weightless and know no languages.