Centipede SwarmCreature 3
Source Pathfinder Monster Core
Perception +9 (darkvision, tremorsense (imprecise) 30 feet)
Languages none
Skills Acrobatics +9, Athletics +7, Stealth +9
Str +2, Dex +4, Con +3, Int -5, Wis +0, Cha -4
AC 18; Fort +8; Reflex +11; Will +5;
HP 30
Speed 30 feet (climb 30 feet)
Immunities precision, swarm mind
Weaknesses Area Damage 5, Splash Damage 5
Resistances Bludgeoning 5, Piercing 5, Slashing 2
Tremorsense (Imprecise) 30 feet
Tremorsense allows a monster to feel the vibrations through a solid surface caused by movement. It is an imprecise sense with a limited range (listed in the ability). Tremorsense functions only if the monster is on the same surface as the subject, and only if the subject is moving along (or burrowing through) the surface.
Swarm MindThis monster doesn't have a single mind (typically because it's a swarm of smaller creatures), and is immune to mental effects that target only a specific number of creatures. It is still subject to mental effects that affect all creatures in an area.
Centipede Swarm Venom (poison)Saving Throw DC 20 fortitude
Maximum Duration 6 rounds
Stage 1 1d6 poison damage and Off-Guard (1 round)
Stage 2 1d8 poison damage, Clumsy 1, and off-guard (1 round)
Swarming Bites
Each enemy in the swarm's space takes 1d8 piercing damage (DC 20 reflex save) plus centipede swarm venom.
Swarms of centipedes are dangerous indeed, ravenous carpets of skittering hunger capable of devouring a traveler whole in a matter of minutes. Kobolds and mitflits are both known to incorporate swarms of centipedes into cunning traps.
Hunters and scavengers that live amid dung and detritus, centipedes are a relatively common and often reviled threat faced by adventurers. Scurrying about with surprising speed on the scores of legs attached to their long, segmented bodies, centipedes strike with poisoned mandibles to slow and torment their prey with a vicious toxin before they settle down to feed in slow and disgusting leisure.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
AnimalAn animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence attribute modifier over –4, can't speak languages, and can't be trained in Intelligence-based skills.
SwarmA swarm is a mass or cloud of creatures that functions as one monster. Its size entry gives the size of the entire mass, though for most swarms the individual creatures that make up that mass are Tiny. A swarm can occupy the same space as other creatures and must do so in order to use its damaging action. A swarm typically has weakness to effects that deal damage over an area (like area spells and splash weapons). Swarms are immune to the grabbed, prone, and restrained conditions.