Monsters / Swarm, Leech

Swarm, Leech

CR 4 - 1,200 XP - N Diminutive Vermin

Stat block

AC18 (touch 18, flat-footed 14)HP39 (6d8+12)SavesFort +7, Ref +6, Will +2Meleeswarm (2d6 plus poison)Speed5 ft., swim 30 ft.AbilitiesStr 1, Dex 18, Con 15, Int -, Wis 10, Cha 2BAB / CMB / CMD+4 / +0 / 0Sensesblindsight 30 ft.; Perception +0Environmenttemperate or warm marshes
immune mind-affecting effectsimmune swarm traitsimmune weapon damagevulnerable susceptible to salt (see giant leech)

Combat brain - every behavior cites its line (1 rules)

Built only from this entry: stat-block special attacks, the printed Int score, the creature type, its feats and senses, and the behavioral prose of its own description. Nothing invented - an uncited behavior is a test failure.

mindless (from intelligence)
Int - (no Intelligence score)

On-hit riders and breath

blood drainDC 15 Fortitude
distractionDC 15 Fortitude

From the entry

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