Actions/Abilities/Traits: (Pathfinder 2e)
Ability
Cling [Reaction]
Circumstance: Trigger: A creature leaves the swarm's space;
The swarm takes 1d6 damage as ticks cling to the creature and continue biting, dealing 3d6 persistent piercing damage. Immersion in water reduces the DC of the flat check to end this persistent damage to 5, and any area damage dealt to the creature destroys these clinging ticks.
Ability
Swarming Bites
Each enemy in the swarm's space takes 3d6 piercing damage (DC 28 basic Reflex save) plus Cling and exposure to tick fever.
Ability
Tick Fever
(disease) Saving Throw DC 27 Fortitude; Onset 1 day; Stage 1 enfeebled (1 day); Stage 2 enfeebled 2 (1 day).
Trait
Animal
An animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence ability modifier over -4, can't speak languages, and can't be trained in Intelligence-based skills.
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
precision
swarm mind
Perception
darkvision
Resistance
bludgeoning 5
piercing 10
slashing 10
Weakness
area damage 10
splash damage 10