XP 800
Fused rat swarm
N Medium animal
Init +6; Senses low-light vision, scent; Perception +8

AC 12, touch 12, flat-footed 10 (+2 Dex)
hp 16 (3d8+3)
Fort +4, Ref +5, Will +2
Defensive Abilities discorporate, half damage from piercing weapons; Immune critical hits, flanking

Speed 15 ft., climb 15 ft., swim 15 ft.
Melee melee touch +2 (1d6 plus disease and distraction)
Special Attacks disease, distraction (DC 12)

Str 10, Dex 15, Con 13, Int 2, Wis 13, Cha 2
Base Atk +2; CMB +2; CMD 14
Feats Improved Initiative, Skill Focus (Perception)
Skills Balance +6, Climb +10, Perception +8, Stealth +6, Swim +10; Racial Modifiers uses Dex to modify Climb and Swim

Environment any
Organization solitary, pack (2–5), or infestation (6–12)
Treasure none

Discorporate (Ex) A rat king dies when reduced to 0 hit points. When a rat king dies, unless its body has been completely destroyed, its remains immediately become a normal, full-strength rat swarm.

Disease (Ex) Filth fever: Melee touch—injury; save Fort DC 12; onset 1d3 days; frequency 1/day; effect 1d3 Dex damage and 1d3 Con damage; cure 2 consecutive saves. The save DC is Constitution-based.