Seps

This giant armored snake has large fangs, dripping with venom that hisses when it spatters on the ground.
 

Seps (CR 11)

Huge Magical Beast
Alignment: Neutral
Initiative: +6
Senses: Darkvision 60 feet, Low-Light Vision, Scent; Perception +17
  Speed: 30 feet
Space: 15 feet
 

Defense

Armor Class: 26, touch 10, flat-footed 24 (+2 Dex, +16 natural, -2 size)
Hit Points: 147 (14d10+70)
Saving Throws: Fort +14, Ref +11, Will +6
acid blood
Immunity: acid, poison
 

Offense

Melee: bite +23 (3d8+15/19-20 plus poison)
Reach: 15 feet
  Special Attacks: poison
 

Statistics

StrDexConIntWisCha
30 (+10) 14 (+2) 21 (+5) 2 (-4) 11 (+0) 11 (+0)
Base Attack Bonus: +14
CMB +26
CMD 38 (can't be tripped)
  Feats: Improved Critical (bite), Improved Initiative, Iron Will, Skill Focus (Perception), Skill Focus (Stealth), Weapon Focus (bite)
  Skills: Perception +17, Stealth +11 Languages:
  Special Qualities: liquefaction

 

Special Abilities

Acid Blood (Ex)

A metal, wooden, or natural weapon that deals piercing or slashing damage to a seps takes 4d6 points of acid damage unless the weapon's wielder succeeds at a DC 22 Reflex save at the listed DC. The DC is Constitution-based.

Liquefaction (Su)

Any creature killed by seps poison dissolves into an acidic liquid that deals 2d6 points of acid damage per round to anything in its square (including the dead creature's equipment).

Poison (Ex)

Bite-injury; save Fort DC 22; frequency 1/round for 10 rounds; effect 1d8 acid damage and 1d4 Con drain; cure 2 consecutive saves.
 

Ecology

Environment: Temperate or Warm Deserts or Forests
Organization: solitary or nest (2-5)
Treasure: incidental (acid-proof items)

  A seps is an exotic snake-like creature whose powerful jaws contain acidic venom so potent that it quickly dissolves prey into liquid. An adult seps is 30 feet long and weighs 1,500 pounds.