Crab Swarm
CR: 4 XP: 1,200
N Diminutive vermin (aquatic, swarm)
Init: +2 Senses: darkvision 60 ft. Perception: +0
Defense
AC: 18, touch 16, flat-footed 16 (+2 Dex, +2 natural, +4 size)
hp: 38 (7d8+7)
Fort: +6 Ref: +4 Will: +2
Immune: mind-affecting effects, swarm traits, weapon damage
Offense
Speed: 30 ft., swim 20 ft.
Melee: swarm (2d6)
Space: 10 ft. Reach: 0 ft.
Special Attacks: distraction (DC 14)
Statistics
Str: 1 Dex: 14 Con: 13 Int: — Wis: 10 Cha: 2
Base Atk: +5 CMB: — CMD: —
Skills: Swim +10, Racial Modifiers uses Dex to modify Swim
Ecology
Environment: any aquatic
Organization: solitary, pair, or wave (3–8 swarms)
Treasure: none
Description
Crab swarms contain over a thousand normal-sized crabs that rush over their victims, plucking flesh with thousands of pinching claws. Some fishermen claim tides and phases of the moon cause these creatures to swarm as they do. This lumbering hard-shelled crab stands as tall as a dwarf, its massive pincers waving menacingly.
A writhing mass of clacking shells and snapping pincers rushes from the surf, their spider-like legs twitching across the sand.