This immense creature looks like a horned rattlesnake, save for its two muscular arms, each of which wields a scimitar.
Aghasura CR 11
AC 23, touch 11, flat-footed 20 (+6 armor, +3 Dex, +6 natural, -2 size)
hp 161 (14d10+84); regeneration 5 (good weapons, good spells)
Fort +15, Ref +9, Will +11; +2 vs. enchantment spells DR 10/good; Immune curse effects, disease, poison; Resist acid 10, electricity 10; SR 22
Speed 35 ft., swim 20 ft.
Melee 2 mwk scimitars +26 (2d6+12/15-20 plus poison), bite +19 (2d8+6 plus grab and poison)
Space 15 ft.; Reach 15 ft.
Special Attacks dual wielder, infused weapons, swallow whole (2d6+12 acid damage, AC 13, 16 hp)
Spell-Like Abilities (CL 11th; concentration +15)
Str 34, Dex 17, Con 23, Int 11, Wis 14, Cha 18
Base Atk +14; CMB +28 (+32 grapple); CMD 41 (can’t be tripped)
Feats Cleave, Critical Focus, Great Cleave, Improved Critical (scimitar), Lightning Reflexes, Power Attack, Weapon Focus (scimitar)
Skills Acrobatics +17, Bluff +19, Escape Artist +6, Intimidate +17, Knowledge (planes) +13, Perception +19, Sense Motive +19, Stealth +9, Swim +17; Racial Modifiers +6 Escape Artist, +4 Perception
Languages Common, Infernal; telepathy 100 ft.
An aghasura exudes a 50-foot aura whenever it remains motionless for at least 1 round. All nonevil creatures that enter this area must make a DC 21 Will save to avoid being compelled to move toward the aghasura’s location. If the aghasura moves, the effect ends for all currently affected creatures. This is a mind-affecting compulsion. The save DC is Charisma-based.
An aghasura does not take a penalty on attack or damage rolls when attacking with two weapons.
Weapons an aghasura wields are considered to be magic for the purposes of overcoming damage reduction. In addition, such weapons gain the ability to deliver the aghasura’s poison on a successful attack.
Environment any (Hell)
Organization solitary or troop (2-9)
Treasure standard (masterwork breastplate, 2 masterwork scimitars, other treasure)
Aghasuras, or the poison ones, are massive fiends who have perfected the art of ambush and hold to duties of guardianship and butchery. It is said that these frightful ophidian monsters came into being when a deity granted free will to her favorite serpent pets, but when these pets were left to their own devices, they slipped into the deity’s favored temple and slew all of her greatest priests. The serpents who survived the deity’s wrath became the first aghasuras.
An aghasura is 30 feet long and weighs nearly 7 tons.