Amphisbaena (3pp)

This creature appears as a huge snake with a head at each end of its body. Its scales are blackish-blue with bands of lighter blue fading into its coloration near the middle of its body. Its heads are glossy-black and its eyes are crimson.

Amphisbaena CR 4

XP 1,200
N Large magical beast
Init +2; Senses all-around vision, darkvision 60 ft., low-light vision; Perception +9


AC 17, touch 11, flat-footed 15 (+2 Dex, +6 natural, -1 size)
hp 42 (5d10+10 plus 5)
Fort +6; Ref +6; Will +2
Defensive Abilities split; Immune petrification; Resist cold 10


Speed 20 ft., climb 20ft., swim 20 ft.
Melee 2 bites +8 (1d8+3 plus poison)
Space 10 ft.; Reach 5 ft.


Str 17, Dex 15, Con 14, Int 2, Wis 12, Cha 2
Base Atk +5; CMB +9; CMD 21 (can’t be tripped)
Feats Lunge, Toughness, Weapon Focus (bite)
Skills Acrobatics +2 (-2 jump, +6 when balancing), Climb +11, Perception +9, Stealth +9, Swim +11; Racial Modifiers +4 Acrobatics when balancing, +4 Perception, +4 Stealth


Poison (Ex)

Bite—injury; save Fort DC 14; frequency 1/round for 4 rounds; effect 1d3 Con; cure 1 save. The save DC is Constitution-based.

Split (Ex)

An amphisbaena functions normally even if cut in half. If dealt a critical hit with a slashing weapon, the creature is cut in half but continues to function as two separate creatures, each with half the original amphisbaena’s current hit points (rounded down). Once split, an amphisbaena cannot be split again. If left alone for 1 minute, the split amphisbaena can rejoin its two halves and become a single whole creature again (add the two creatures’ hit points together). If one of the split creatures is slain, the amphisbaena can regrow the lost portion over the course of a few weeks.


Environment underground
Organization solitary or pack (2–4)
Treasure none

The amphisbaena is a giant poisonous snake about 10 feet long. It is often found lairing near a water source or in dark, damp locations. An amphisbaena moves on land by grasping one of its necks with its other head and rolling across the ground like a hoop. An amphisbaena is an aggressive and territorial creature, attacking any living creatures that wander near its lair. It attacks by biting with its poisonous fangs from both of its heads.

Section 15: Copyright Notice

Amphisbaena from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Author Scott Greene, based on original material by Gary Gygax.

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