Rat Plague Swarm
CR: 11 MR: 8 XP: 25,600
LE Tiny magical beast (mythic, swarm)
Init: +16M/–4, dual initiative Senses: darkvision 60 ft., low-light vision, scent Perception: +23
Defense
AC: 25, touch 17, flat-footed 20 (+4 Dex, +1 dodge, +8 natural,, +2 size)
hp: 152 (16d10+64), fast healing 5
Fort: +11 Ref: +16 Will: +9, second save
Defensive Abilities: reform, swarm traits, unstoppable
DR: 10/epic
Offense
Speed: 30 ft., climb 30 ft., swim 30 ft.
Melee: swarm +14 (4d6–2 plus 4d6 blight, curse of lycanthropy,, disease, and distraction)
Space: 20 ft. Reach: 0 ft.
Special Attacks: distraction (DC 19), mythic power (8/day,, surge +1d10)
Statistics
Str: 2 Dex: 19 Con: 8 Int: 19 Wis: 18 Cha: 15
Base Atk: +16 CMB: — CMD: —
Feats: Ability Focus (curse of lycanthropy), Ability Focus (distraction), Dodge, Extra Mythic Power, Great Fortitude, Improved Initiative, Lightning Reflexes, Lightning Stance, Wind Stance
Skills: Acrobatics +20, Climb +31, Diplomacy +18, Perception +23, Stealth +31, Swim +31
SQ: hivemind, multiply (rat swarm with curse of lycanthropy [Fort DC 12])
Languages: Abyssal, Celestial, Common, Infernal (can’t speak any language), telepathy 200 ft.
Ecology
Description
Curse of Lycanthropy (Su) A humanoid of any size who takes damage from a plague rat swarm must succeed at a DC 19 Fortitude save or it contracts lycanthropy and becomes a wererat. Any humanoid who contracts lycanthropy from a rat plague swarm becomes immune to bubonic plague.
Disease (Ex) Bubonic Plague: Swarm—injury; save Fort DC 19; onset immediate; frequency 1/day; effect 1d4 Str damage, 1 Cha damage, and target is fatigued; cure 2 consecutive saves.
Hivemind (Su) A plague rat swarm can maintain constant telepathic communication with every wererat it created with its curse of lycanthropy as long as they are on the same plane. These wererats have an attitude of helpful toward the swarm.
Reform (Su) A rat plague swarm can be destroyed only if a mythic spellcaster (or a non-mythic spellcaster who succeeds at a DC 31 caster level check) affects it with remove disease on the round before the swarm is dispersed. This condition bypasses a swarm’s normal immunity to single-target effects.