Fantasy Monster: Glass Spider

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Glass Spider

An almost completely transparent spider made of crystal.

CR 2; 600 XP

N Small Construct (animate)

Init +3; Senses darkvision 60 ft., low-light vision, tremorsense 60 ft.; Perception +10

Defense
AC 14, touch 14, flat-footed 11 (+3 Dex, +1 size)
hp 21 (2d10+10)
Fort +0, Ref +3, Will +0

Defensive Abilities crystal cocoon; DR 5/bludgeoning; Immune construct traits

Weakness revealed in light

Offense
Speed 30 ft., climb 20 ft.

Melee bite +3 (1d6), 2 claws +3 (1d6)

Special Attacks spit web (30 ft., 5 ft. square, DC 13)

Statistics
Str 10, Dex 16, Con —, Int —, Wis 11, Cha 1

Base Atk +2; CMB +1; CMD 14 (22 vs. trip)
Skills Climb +10, Perception +10, Stealth +17 (+27 when immobile); Racial Modifiers +10 Perception, +10 Stealth, doubled when immobile

Ecology
Environment underground, ruins
Organization solitary, pair, or swarm (3–12)
Treasure standard (crystal fragments that can be used as components for light or invisibility related magical creations)

Special Abilities

Crystal Cocoon (Su) A damaged glass spider can take an hour to weave a protective cocoon made of its webs and pieces of minerals around itself, usually in secluded place, such as hard to reach part of cave wall. After at least 24 hours spent within, the glass spider can emerge from the cocoon fully repaired, and with any missing limbs restored. Crystal cocoons glow with faerie fire when exposed to magical light.

Revealed In Light (Su) Whenever glass spider is affected by magical light effect, or remains within 5 feet of a source of magical light, the light refracts and reflects along many angles of its glass body, outlining the glass spider as if affected with faerie fire for as long as it is exposed to the light and for 1 round thereafter.

Spit Web (Su) Once every 1d4+1 rounds, a glass spider can spit web as a standard action, targeting single square within 30 feet. Any creature that remains or enters the affected area becomes grappled by the sticky webs on a failed Reflex saving throw (DC 13). Grappled creatures can free themselves by succeeding on a combat maneuver or Escape Artist check against the same DC as a standard action. The webs are flammable and can be burned easily in a single round, but the creature within suffers 2d4 points of fire damage. The saving throw DC is Strength-based and includes +2 racial bonus.

Glass spiders are strange formations of spider-shaped crystal, seemingly spontaneously animated and behaving creepily similar to real giant spiders.