A spider the size of a man crawls silently from the depths of its funnel-shaped web.
Corrosive Spider (CR 2)
N Medium Magical Beast
Init: +4; Senses Darkvision 60 ft., Tremorsense 60 ft.; Perception +5
AC 16, touch 14, flat-footed 12 (+4 dex, +2 natural)
hp 30  (4d10+8)
Fort +6, Ref +8, Will +1
Immune mind-affecting effects; Resist Wind 5
Speed 30 ft., Climb 30 ft.
Melee Bite +5 (1d6+1 plus poison)
Special Attack Corrosive Web, Critical Attack, Web (+8 ranged, DC 14, hp 4)
Str 12, Dex 18, Con 14, Int -, Wis 10, Cha 2
Base Atk +4; CMB +5; CMD 19 (31 vs. trip)
Skills Climb +18, Perception +5 (+9 in webs), Stealth +9 (+13 in web); Racial Modifiers +4 Perception (+8 in webs), +4 Stealth (+8 in web), +16 Climb
Corrosive Web (Su)
1/day, a corrosive spider can throw a corrosive web on enemies in a 15-ft.-cone burst. All creatures caught within the cone must make a Reflex save (DC 14) or are entangled for 2d4 rounds, but can break loose by spending 1 round and making a DC 14 Strength check or Escape Artist check. The webbed victims take 1d6 points of non-elemental damage per round while in the web. The strands of the web are flammable. A magic flaming sword can slash them away as easily as a hand brushes away cobwebs. Any fire—a torch, burning oil, a flaming sword, and so forth—can set the webs alight and burn away in 1 round. All creatures within flaming webs take 2d4 points of fire damage from the flames. This save is Constitution-based. Blue mages may learn this ability as a 2nd level spell (Knowledge: Arcana DC 19).
Critical Attack (Ex)
Once every 1d4 rounds as a standard action, the corrosive spider can inflict more pain than normal. If they succeed at hitting with their bite attack, the damage is 1d6+1 x 1.5 for total damage.
Bite – injury; save Fort DC 14; frequency 1/round for 4 rounds; effect 1d2 Strength damage; cure 1 save.