Flame Spider
Spiders said to have been bred with demons, they tend to haunt the deep subterranean for food. Subterranean dwellers sometimes capture them and use them as beasts of war, releasing them on their enemies. Flame Spiders look like giant spiders, legs outstretched, and constantly on fire.
Huge Vermin
Hit Dice: 11d8+33 (86)
Initiative: +6
Speed: 30 ft, Climb 30 ft
Armor Class: 23 (-2 size, +6 dex, +9 natural)
Base Attack/Grapple: +9/+24
Attack: 2 Bites +16
Damage: 2 Bites (1d6+7+poison)
Space/Reach: 15 ft/10 ft
Special Attacks: Poison, Web, Fire Spit, Flame Body
Special Qualities: Darkvision 60 ft, Tremorsense 60 ft, Vermin Traits, Spell Resistance 23, Damage Reduction 5/+2
Saves: Fort +11, Ref +10, Will +5
Abilities: Str 32, Dex 22, Con 17, Int 3, Wis 10, Cha 2
Skills: Climb +27, Jump +21, Spot +7
Feats: -
Environment: Subterranean
Organization: Solitary
Challenge Rating: 8
Treasure: Standard
Alignment: Always Neutral
Advancement: 13-17 HD (Gargantuan)
Level Adjustment: -
Poison: Fortitude DC 19, Damage 1d8 Con.
Web: As the monstrous spider ability of the same size.
Fire Spit: As a standard action, a Flame Spider can spit a ball of fire up to 100 feet, dealing 11d4 fire damage to all creatures within a ten foot radius of the point it hit, reflex save DC 23 for half.
Flame Body: Any creatures that grapples a Flame Spider takes 11d6 fire damage per a round of the grapple.