Actions/Abilities/Traits: (Pathfinder 2e)
Ability
Countless Digits
Each other creature in the phalanx of phalanges' space takes 1d6 piercing damage (1d6+2 piercing damage if the swarm is berserk) (DC 17 basic Reflex save). On a critical failure, the target is thoroughly pinned by the phalanges, becoming immobilized until it Escapes (DC 17) or until any creature uses 2 Interact actions to scrape away the bones pinning them down.
Ability
Predetermined Path
A phalanx of phalanges knows a single path on even ground no longer than 100 feet, as determined by its creator. The phalanx of phalanges makes no actions other than moving along this path or making Countless Digits attacks against creatures in its way. If impeded on this path or if it takes damage, the phalanx of phalanges is unbound from its path and is permanently berserk, attacking nearby creatures to the best of its ability. Speed 20 feet
Trait
Construct
A construct is an artificial creature empowered by a force other than necromancy. Constructs are often mindless; they are immune to bleed damage, death effects, disease, healing, necromancy, nonlethal attacks, poison, and the doomed, drained, fatigued, paralyzed, sickened, and unconscious conditions; and they may have Hardness based on the materials used to construct their bodies. Constructs are not living creatures, nor are they undead. When reduced to 0 Hit Points, a construct creature is destroyed.
Trait
Mindless
A 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.
Trait
Swarm
A 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 grappled, prone, and restrained conditions.
Immunity
death effects
disease
doomed
drained
fatigued
healing
mental
necromancy
nonlethal attacks
paralyzed
poison
sickened
unconscious
Perception
darkvision
Resistance
cold 3
electricity 3
fire 3
piercing 3
slashing 3
Weakness
area damage 3
splash damage 3