Giant Leech, Medium (CR 2)

Medium Animal
Alignment: Neutral
Initiative: -3 (Dex)

AC: 7 (-3 Dex), touch 7, flat-footed 10
Hit Dice: 4d8+4 (22 hp)
Fort +7, Ref +1, Will +4
Speed: 5 ft.
Space: 2 ft./2 ft.
Base Attack +3; Grapple -2
Attack: Bite +5
Full Attack: Bite +5
Damage: Bite 4
Special Attacks/Actions: Blood drain, disease
Abilities: Str 13, Dex 4, Con 12, Int -, Wis -, Cha 2
Special Qualities: Anesthetic, salt susceptibility
Feats: Great Fortitude; Weapon Focus (bite)
Skills: -
Advancement: -
Climate/Terrain: Swamps and marshes
Organization: Swarm (4-16)
Treasure/Possessions: None

Source: Converted

Blood drain (Ex): Each round following a successful bite attack, the leech drains blood equivalent to the listed damage (e.g., a greater small giant leech drains 3 hit points per round).

Anesthetic (Ex): The bite of a leech carries a natural anesthetic. There is but a 1% chance per round that a victim will notice the blood loss or the leech, unless it comes out of the water, or until the victim begins to feel weakened and faint due to the loss of blood (after 50% of the victim's maximum hit points have been drained).

Disease (Ex): Some 50% of all leech bites carry some form of disease (see Disease).

Salt susceptibility (Ex): Leeches are especially susceptible to salt. Sprinkling salt on their bodies will cause them to shrivel and die. Half a pound of salt is all that is required to kill a giant leech, regardless of its size.

Leeches attack by biting those unfortunates that brush against them while moving through infested waters. Their initial attack does no damage, as the creature bites and latches on to their victim. In rounds subsequent to a successful attack, leeches draw blood from their victims as they feed. A leech can easily be removed, once detected, from a victim with no further damage.