Rat Swarm	CR 2
Always N Tiny Animal (Swarm) Init +2; Senses low-light vision, scent; Listen +6, Spot +7 Languages —
AC 14, touch 14, flat-footed 12 (+2 size, +2 Dex) hp 13 (4 HD) Resist half damage from slashing and piercing Fort +4, Ref +6, Will +2
Speed 15 ft., climb 15 ft. Space 10 ft.; Reach 0 ft. Base Atk +3; Grp −
Abilities Str 2, Dex 15, Con 10, Int 2, Wis 12, Cha 2 SQ swarm traits Feats Alertness, Weapon Finesse Skills Balance +10, Climb +10, Hide +14, Listen +6, Spot +7, Swim +10 Advancement None
Disease (Ex) Filth fever-swarm attack, Fortitude DC 12, incubation period 1d3 days, damage 1d3 Dex and 1d3 Con. The save DC is Constitution-based. Distraction (Ex) Any living creature that begins its turn with a swarm in its square must succeed on a DC 12 Fortitude save or be nauseated for 1 round. The save DC is Constitution-based. Skills A rat swarm has a +4 racial bonus on Hide and Move Silently checks, and a +8 racial bonus on Balance, Climb, and Swim checks. A rat swarm can always choose to take 10 on all Climb checks, even if rushed or threatened. A rat swarm uses its Dexterity modifier instead of its Strength modifier for Climb and Swim checks. A rat swarm has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.

Rat Swarm

CR 2

Always N Tiny Animal (Swarm)

Init +2; Senses low-light vision, scent; Listen +6, Spot +7

Languages —

AC 14, touch 14, flat-footed 12
(+2 size, +2 Dex)

hp 13 (4 HD)

Resist half damage from slashing and piercing

Fort +4, Ref +6, Will +2

Speed 15 ft., climb 15 ft.

Space 10 ft.; Reach 0 ft.

Base Atk +3; Grp −

Abilities Str 2, Dex 15, Con 10, Int 2, Wis 12, Cha 2

SQ swarm traits

Feats Alertness, Weapon Finesse

Skills Balance +10, Climb +10, Hide +14, Listen +6, Spot +7, Swim +10

Advancement None

Disease (Ex) Filth fever-swarm attack, Fortitude DC 12, incubation period 1d3 days, damage 1d3 Dex and 1d3 Con. The save DC is Constitution-based.

Distraction (Ex) Any living creature that begins its turn with a swarm in its square must succeed on a DC 12 Fortitude save or be nauseated for 1 round. The save DC is Constitution-based.

Skills A rat swarm has a +4 racial bonus on Hide and Move Silently checks, and a +8 racial bonus on Balance, Climb, and Swim checks. A rat swarm can always choose to take 10 on all Climb checks, even if rushed or threatened. A rat swarm uses its Dexterity modifier instead of its Strength modifier for Climb and Swim checks. A rat swarm has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.