Inferno Spider (CR 8)
Large Elemental (Extraplanar and Fire)
Alignment: Always neutral
Initiative: +7(+3 Dex, +4 Improved Initiative); Senses: darkvision 60 ft., tremorsense 60 ft., Listen +6, and Spot +6
Languages: Ignan
AC: 22 (-1 size, +3 Dex, +10 natural), touch 12, flat-footed 19
Hit Dice: 14d8+56 (119 hp); DR: 5/-
Fort +8, Ref +12, Will +6
Speed: 40 ft. and Climb 40 ft.; Spring Attack
Space: 10 ft.; Reach 5 ft.
Base Attack +10; Grapple +19
Attack: Melee bite +14 (2d6+7 plus caustic poison)
Ranged flame web +12 ranged touch (2d6 fire plus entangle)
Special Attacks/Actions:
Attack Options: Combat Reflexes, caustic poison (DC 21, 3d6 fire/3d6 fire), fire shield
Abilities: Str 20, Dex 16, Con 18, Int 6, Wis 11, Cha 11
Special Qualities: Immune fire; elemental immunities; Weakness: vulnerability to cold
Feats: Alertness, Combat Reflexes, Dodge, Improved Initiative, Iron Will, Mobility, Spring Attack,
Skills: Climb +13, Hide +8, Jump +9, Listen +6, and Spot +6
Advancement: 15-20 HD (Large); 21-28 HD (Huge); 29-40 HD (Gargantuan)
Climate/Terrain: Elemental Plane of Fire, any warm region on the Material Plane
Organization: Solitary
Treasure/Possessions: None
Source:
Monster Manual IV
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.
Fire Subtype
A creature with the fire subtype has immunity to fire. It has vulnerability to cold, which means it takes half again as much (+50%) damage as normal from cold, regardless of whether a saving throw is allowed, or if the save is a success or failure.