Clacking Skull SwarmCreature 10
Source Pathfinder Bestiary 3
Perception +18 (darkvision)
Languages none
Skills Acrobatics +19
Str -3, Dex +3, Con +4, Int -5, Wis +2, Cha +4
AC 29; Fort +20; Reflex +19; Will +16;
HP 120 (negative healing)
Speed 25 feet
Immunities death effects, disease, mental, paralyzed, poison, precision, unconscious
Weaknesses Area Damage 10, Splash Damage 10
Resistances Bludgeoning 5, Cold 10, Electricity 10, Fire 10, Piercing 10, Slashing 10
Darkvision
A monster with darkvision can see perfectly well in areas of darkness and dim light, though such vision is in black and white only. Some forms of magical darkness, such as a 4th-level Darkness spell, block normal darkvision. A monster with Greater Darkvision, however, can see through even these forms of magical darkness.
Negative HealingA creature with negative healing draws health from negative energy rather than positive energy. It is damaged by positive damage and is not healed by positive healing effects. It does not take negative damage, and it is healed by negative effects that heal undead.
Boneshard BurstWhen a clacking skull swarm is reduced to 0 Hit Points, it erupts in an explosion of foul energy and bone fragments in a 30-foot burst, dealing 2d12 piercing damage and 2d12 negative damage (DC 29 basic reflex save).
Chattering Teeth (arcane, auditory, aura, emotion, enchantment, incapacitation, mental)60 feet Aura
A clacking skull swarm emits a cacophony of chattering. A creature entering or beginning its turn within the area must succeed at a DC 29 will save or become Confused for 1 round. A creature that successfully saves is immune to that swarm's chattering teeth for 24 hours. The swarm can stop or resume this ability as a free action.
Shrieking Scream
(auditory, emotion, enchantment, fear, mental)The clacking skull swarm emits a terrifying, painful scream that deals 10d6 sonic damage to all creatures in a 30-foot cone (DC 29 basic will save). A creature that fails this save is also Frightened 1 (Frightened 2 on a critical failure).
The swarm can't use Frightening Scream again for 1d4 rounds.
Swarming Gnaw
Each enemy in the swarm's space takes 4d8 piercing damage (DC 29 basic reflex save).
Roiling about in seething waves of bleached death, clacking skull swarms arise from the remains of dozens of beheaded humanoids. The horrible clattering of the skulls' onslaught drives their prey to distraction even while they try to flee in terror.
A skull swarm is composed of reanimated masses of craniums and jawbones, forming a terrifying avalanche of undead fury. Most skull swarms are mindless, though some retain a vestige of wit, awareness, and even magical talents from life, culminating in a highly intelligent swarm mind.
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.
MindlessA mindless creature has either programmed or rudimentary mental attributes. Most, if not all, of their mental ability modifiers are -5. They are immune to all mental effects.