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    Medium monstrosity (aquatic), chaotic evil

    Armor Class 13 (leather armor)
    Hit Points 16 (3d8 + 3)
    Speed 30 ft., swim 30 ft.

    13 (+1) 14 (+2) 12 (+1) 12 (+1) 12 (+1) 10 (+0)

    Skills Stealth +4
    Senses darkvision 60 ft., passive Perception 11
    Languages Abyssal, Tsathar
    Challenge ½ (100 XP)

    Special Traits

    • Amphibious. The tsathar can breathe air and water.
    • Keen Smell. The tsathar has advantage on Wisdom (Perception) checks that rely on smell.
    • Slimy. Tsathar continuously cover themselves with muck and slime. Creatures attempting to grapple a tsathar do so with disadvantage.
    • Standing Leap. The tsathar’s long jump is up to 20 feet and its high jump is up to 10 feet, with or without a running start.


    • Multiattack. The tsathar makes two melee attacks: one with its bite and one with its claws, or one with its bite and one with its spear.
    • Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) piercing damage.
    • Claws. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) slashing damage, and the target must succeed on a DC 13 Constitution saving throw or become the living host to a tsathar egg, which over the course of the egg maturing, migrates to the chest cavity of the host. The host creature must make another DC 13 Constitution saving throw after 24 hours of the egg having been implanted. A failed saving throw results in the host becoming violently ill, followed by a deep comalike state that lasts 2d6 + 2 days. At the end of each day, the host can attempt another saving throw with a success indicating that its body has managed to destroy the egg through normal immune response. At the end of the incubation period, the host awakes to excruciating pain as the young tsathar, freed from its egg, tears its way out of the host, who is reduced to 0 hit points in the process. A DC 16 Wisdom (Medicine) check can be attempted to surgically extract an egg from the host. A lesser restoration spell will also cure the condition and purge the host of the egg.
    • Spear. Melee Weapon Attack: +3 to hit, reach 5 ft. or 20/60 ft., one target. Hit: 4 (1d6 + 1) piercing damage, or 5 (1d8 +1) piercing damage if used with two hands to make the melee attack.


    This vile creature resembles an upright, humanoid frog with gray flesh and reddish-gold eyes. Its humanoid arms end in wicked claws.

    Tsathar (pronounced “suh-Thar”) are a race of froglike humanoids that dwell in fetid swamps and dark caverns deep beneath the earth. They worship a strange and terrifying demonic being known as Tsathogga, and often hunt down and capture individuals of other humanoid races to serve as sacrifices or victims in their foul breeding pits.

    Tsathar prefer to use short, barbed spears and kukris in combat. They sometimes employ nets as well. They charge into combat with maniacal fury, and rarely use elaborate tactics unless a scourge or priest is present to control them. They favor leather armor crafted from hides of the frogs they breed. Priests favor the wicked kukri in battle.

    A typical tsathar stands 6 feet tall and weighs about 300 pounds. A tsathar scourge is slightly bulkier, of equivalent height but weighing about 350 pounds.


    Tsathar prefer to live in fetid lairs deep underground or in dark swamps. When they dwell above ground, they are nocturnal. Some few surface-dwelling tsathar have joined cults of assassins. Tsathar communities are led by priests that lead the tsathar in their reverence of the demon-god Tsathogga, a foul toadlike demonic being. Tsathar are sexless and reproduce by implanting an egg into a host, which can be any form of living creature. Normally, creatures are captured or bred to serve as hosts — dire rats and giant frogs being common hosts. It is said that priests must be born of an egg implanted into a humanoid or other creature of great intelligence.

    Section 15: Copyright Notice

    Tome of Horrors © 2018, Frog God Games, LLC; Authors: Kevin Baase, Erica Balsley, John “Pexx” Barnhouse, Christopher Bishop, Casey Christofferson, Jim Collura, Andrea Costantini, Jayson ‘Rocky’ Gardner, Zach Glazar, Meghan Greene, Scott Greene, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Bill Kenower, Patrick Lawinger, Rhiannon Louve, Ian McGarty, Edwin Nagy, James Patterson, Nathan Paul, Patrick N. Pilgrim, Clark Peterson, Anthony Pryor, Greg Ragland, Robert Schwalb, G. Scott Swift, Greg A. Vaughan, and Bill Webb