Stegaloviper CR 7

This massive creature can only be a magical or evolutionary hybrid of a giant centipede and a great serpent. Its jaws are impossibly sharp and its maw drips caustic saliva onto the interlocked stone plates that cover its body as the thing menaces forward, half-slithering and half-climbing on its many insect-like legs. As danger approaches it hisses while shaking its massive bony tail back and forth in a frantic pattern.

XP 3,200
N Huge magical beast
Init +2; Senses darkvision 60 ft., low-light vision, scent; Perception +10


AC 20, touch 6, flat-footed 20 (-2 Dex, +14 natural, -2 size)
hp 85 (9d10+36)
Fort +12, Ref +4, Will +5; DR 10/adamantine or bludgeoning


Speed 30 ft., climb 30 ft., swim 30 ft.
Melee bite +15 (2d8+8 plus poison), tail slap +10 (2d10+4 plus trip)
Space 15 ft.; Reach 15 ft. (tail 25 ft.)
Special Attacks poison


Before Combat A stegaloviper climbs up above or burrows underneath its opponents.

During Combat Stegalovipers prefer to use their tails in combat, but when an enemy survives more than one hit it uses both its natural attacks on one target at a time.

Morale A stegaloviper retreats when reduced to 8 hp or less.


Str 26, Dex 7, Con 19, Int 8, Wis 15, Cha 8
Base Atk +9; CMB +19; CMD 27 (can’t be tripped)
Feats Blind-Fight, Great Fortitude, Improved Initiative, Power Attack, Skill Focus (Stealth)
Skills Acrobatics +2, Perception +9, Stealth +0; Racial Modifiers +8 Stealth when in subterranean or rocky terrain


Stegaloviper Poison (Ex)

Bite—injury; saveFort DC 18; onset—immediate; frequency—1/round for 10 rounds; effect—1d6 Constitution; cure—2 consecutive saves.


Environment any subterranean
Organization solitary, pair or nest (4–9)
Treasure incidental

The “hammer of the deep” is a subterranean creature that lairs within the unfathomable depths of the Underworld, preying upon unsuspecting creatures of all variety. Using natural camouflage and its burrowing abilities, the stegaloviper climbs into position to use its great hammer-like tail to shatter other creatures’ defenses before gulping down the soft delicious bits within.

A stegaloviper can rear up to be 15 ft. in height but are much longer from head to tail (sometimes nearing 30 ft.) and most adult specimen weigh 1,200 lbs. or more.

Section 15: Copyright Notice

Aventyr Bestiary © 2017 AAW GAMES LLC Authors Mike Myler, Jonathan G. Nelson Developers, Michael Allen, Curtis Baum, Wolfgang Baur, Brian Berg, Adam Daigle, Jeffrey Gomez, Joshua Gullion, Jacob Kellogg, Jared Jeanquart, Juan Lucha, Justin Andrew Mason, Jonathan McAnulty, Michael McCarthy, Raven Mimura, Brian Wiborg Monster, Will Myers, Mike Myler, Jason Nelson, Jonathan G. Nelson, Owen K.C. Stephens, Colin Stricklin, Cory Vickruck, Stephen Yeardley Jonathan G. Nelson

scroll to top