Aspect of Juiblex (CR 8)

Large Outsider (Chaotic, Evil, Extraplanar, and Tanar'ri)
Alignment: Chaotic evil
Initiative: +3(Dex); Senses: blindsight 60 ft., darkvision 60 ft., Listen +13, and Spot +13
Languages: Abyssal, Common; telepathy 100 ft.

AC: 22 (-1 size, +3 Dex, +10 natural), touch 12, flat-footed 19
Hit Dice: 8d8+48 (84 hp); DR: 10/cold iron and good
Fort +12, Ref +9, Will +8
Speed: 30 ft. and Climb 30 ft.
Space: 10 ft.; Reach 10 ft.
Base Attack +8; Grapple +18
Attack: Melee: 2 slams +13 (1d8+6 plus 1d6 acid)
Special Attacks/Actions:
Attack Options: Combat Expertise, Combat Reflexes, improved grab, constrict 1d6+6 plus 1d6 acid
Abilities: Str 23, Dex 16, Con 23, Int 14, Wis 15, Cha 10
Special Qualities: Immune: acid, bludgeoning damage, electricity; Resist: fire 10; amorphous, tanarri traits
Feats: Combat Expertise, Combat Reflexes, Improved Natural Attack (slam)
Skills: Bluff +11, Climb +14, Diplomacy +4, Hide +10, Intimidate +13, Knowledge (arcana) +13, Knowledge (dungeoneering) +13, Listen +13, Move Silently +14, Sense Motive +13, Spellcraft +4, Spot +13, Survival +2 (+4 when underground), and Swim +17
Advancement:
Climate/Terrain: The Abyss (Layer 222)
Organization:
Treasure/Possessions: None

Source: Web enhancement

Constrict (Ex): The aspect of Juiblex deals 1d6+6 points of damage plus 1d6 points of acid damage with a successful grapple check, in addition to damage from his slam attack.

Improved Grab (Ex): To use this ability, the aspect of Juiblex must hit an opponent of Large or smaller size with his slam attack. He can then attempt to start a grapple as a free action without provoking an attack of opportunity. If he wins the grapple check, he establishes a hold and can constrict or attempt to engulf.

Amorphous (Ex): Bludgeoning weapons and impact damage deal no damage to an aspect of Juiblex. He can slip through spaces that otherwise could accommodate a creature no larger than Tiny because of his jellylike substance.

Chaotic Subtype

A subtype usually applied only to outsiders native to the chaotic-aligned Outer Planes. Most creatures that have this subtype also have chaotic alignments; however, if their alignments change they still retain the subtype. Any effect that depends on alignment affects a creature with this subtype as if the creature has a chaotic alignment, no matter what its alignment actually is. The creature also suffers effects according to its actual alignment. A creature with the chaotic subtype overcomes damage reduction as if its natural weapons and any weapons it wields were chaotic-aligned (see Damage Reduction).

Evil Subtype

A subtype usually applied only to outsiders native to the evil-aligned Outer Planes. Evil outsiders are also called fiends. Most creatures that have this subtype also have evil alignments; however, if their alignments change, they still retain the subtype. Any effect that depends on alignment affects a creature with this subtype as if the creature has an evil alignment, no matter what its alignment actually is. The creature also suffers effects according to its actual alignment. A creature with the evil subtype overcomes damage reduction as if its natural weapons and any weapons it wields were evil-aligned (see Damage Reduction).

Extraplanar Subtype

A subtype applied to any creature when it is on a plane other than its native plane. A creature that travels the planes can gain or lose this subtype as it goes from plane to plane. This book assumes that encounters with creatures take place on the Material Plane, and every creature whose native plane is not the Material Plane has the extraplanar subtype (but would not have when on its home plane). An extraplanar creatures usually has a home plane mentioned in its description. These home planes are taken from the Great Wheel cosmology of the D&D game (see Chapter 5 of the Dungeon Master's Guide). If your campaign uses a different cosmology, you will need to assign different home planes to extraplanar creatures.

Creatures not labeled as extraplanar are natives of the Material Plane, and they gain the extraplanar subtype if they leave the Material Plane. No creature has the extraplanar subtype when it is on a transitive plane; the transitive planes in the D&D cosmology are the Astral Plane, the Ethereal Plane, and the Plane of Shadow.

Tanarri Subtype

Most demons encountered outside of the Abyss are tanar'ri. The most populous of the demon subtypes, the tanar'ri form the largest and most diverse group of demons. They are the unchallenged masters of the Abyss at this time. The first tanar'ri were forged from the souls of the first humanoids drawn to the Abyss. Most tanar'ri incorporate humanoid features into their forms as a result of their close ties to the mortal realm.

Traits: A tanar'ri possesses the following traits (unless otherwise noted in a creature's entry).