Leech Swarm

A mass of wriggling black creatures each the size of a man's finger stirs the stagnant water before enveloping its victim.
 

Leech Swarm (CR 4)

Diminutive Vermin (Aquatic, Swarm)
Alignment: Neutral
Initiative: +4
Senses: Blindsight 30 feet; Perception +0
  Speed: 5 feet, Swim 30 feet
Space: 10 feet
 

Defense

Armor Class: 18, touch 18, flat-footed 14 (+4 Dex, +4 size)
Hit Points: 39 (6d8+12)
Saving Throws: Fort +7, Ref +6, Will +2
Immunity: mind-affecting effects, swarm traits, weapon damage
Weaknesses: susceptible to salt
 

Offense

Melee: swarm (2d6 plus poison)
Reach: 0 feet
  Special Attacks: Blood Drain, Distraction (DC 15)
 

Statistics

StrDexConIntWisCha
1 (-5) 18 (+4) 15 (+2) - 10 (+0) 2 (-4)
Base Attack Bonus: +4
CMB -
CMD -
  Feats:
  Skills: Stealth +16 (+24 in swamps), Swim +12
  • Racial Modifiers: +8 Stealth in swamps, uses Dexterity to modify Swim checks
Languages:
 

Special Abilities

Blood Drain (Ex)

Any living creature that begins its turn with a leech swarm in its space is drained of its blood and takes 1d3 points of Str and Con damage.

Poison (Ex)

Swarm-injury; save Fort DC 15; frequency 1/round for 2 rounds; effect 1d4 Dexterity drain; cure 1 save.
 

Ecology

Environment: Temperate or Warm Marshes
Organization: solitary, pair, or infestation (3-6 swarms)
Treasure: none

  This horrifying cloud of ravenous, blood-draining parasites eschews the stealth of a lone leech's methods in favor of swift and merciless feeding.