Swamp Adder

Swamp Adder is a small beast (Challenge Rating 1/4).

Swamp Adder — fantasy monster illustration. Swamp Adder is a small beast (Challenge Rating 1/4).
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AC: 13

HP: 18

Speed: walk 30 ft.

STR: 4

DEX: 16

CON: 12

INT: 1

WIS: 10

CHA: 4

A vicious snake with a squat, diamond-shaped head, a puffed neck, and a peculiar yellow band around its body, the swamp adder is a stout, somewhat lethargic hunter.
Marsh Hunter. This venomous snake—sometimes known as the “speckled band”—is native to the marshes of southern realms, where it devours waterfowl and incautious halflings.
Bred for Venom. The swamp adder is simultaneously feared and prized for its potent paralytic venom. A swamp adder is quite thin, though it may grow up to 12 feet long and the largest weigh as much as 50 pounds. A dose of paralytic swamp adder venom is worth 3,000 gp or more on the black market.

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022
Last updated 7/27/2026·Tags: monster, beast, small