This immense worm is covered with plates of dead-black, chitinous armor. Its toothy maw yawns like a cave.
Nightcrawler CR 18
CE Gargantuan undead (extraplanar, nightshade)
Init +4; Senses darksense, darkvision 120 ft., low-light vision, detect magic, tremorsense 120 ft.; Perception +33
Aura desecrating aura (30 ft.)
Speed 30 ft., burrow 60 ft.
Melee bite +32 (4d10+18/19–20 plus 4d6 cold and grab), sting +32 (4d6+18/19–20 plus 4d6 cold and poison)
Space 20 ft.; Reach 20 ft.
Special Attacks channel negative energy (9d6, DC 31, 9/day), energy drain (1 level, DC 28), swallow whole (4d10+22 bludgeoning plus energy drain, AC 23, 31 hp)
Spell-Like Abilities (CL 18th; concentration +24)
Constant—air walk, detect magic, magic fang
At will—contagion (DC 20), deeper darkness, greater dispel magic, invisibility, unholy blight (DC 20)
3/day—quickened cone of cold (DC 21), confusion (DC 20), haste, hold monster (DC 21)
1/day—finger of death (DC 23), mass hold monster (DC 25), plane shift (DC 23), summon (level 8, 6 greater shadows)
Str 41, Dex 10, Con —, Int 20, Wis 21, Cha 23
Base Atk +18; CMB* +37 (+41 grapple); CMD 47 (can’t be tripped)
Feats Combat Expertise, Command Undead, Critical Focus, Greater Vital Strike, Improved Critical (bite), Improved Critical (sting), Improved Initiative, Improved Vital Strike, Iron Will, Power Attack, Quicken Spell-Like Ability (cone of cold), Staggering Critical, Vital Strike
Skills Intimidate +34, Knowledge (arcana) +33, Knowledge (planes) +30, Knowledge (religion) +33, Perception +33, Sense Motive +33, Spellcraft +33, Stealth +16 (+24 in darkness), Swim +40; Racial Modifiers +8 Stealth in dim light and darkness
Languages Abyssal, Common, Infernal; telepathy 100 ft.
A creature that has been swallowed whole by a nightcrawler gains 1 negative level each round.
The save DC is Charisma-based.
Environment any (Negative Energy Plane)
Organization solitary or pair
Although the nightcrawler might appear to be little more than an immense and frightening vermin, with its centipede-like body and numerous glowing eyes, it is actually incredibly intelligent. When not cleansing the deep caverns of life, the nightcrawler spends its time plotting how best to carry out its own private stages of the overall nightshade plan to expunge life from all worlds, conferring with its undead minions and, when necessary, observing living creatures from afar while invisible to learn about hidden enclaves that its depredations might otherwise have missed.
It would be one thing if the nightcrawlers remained in the deep caverns, for these regions are rife with foul life the world is better off without. Yet unfortunately for those who dwell upon the surface, nightcrawlers often crawl up through the tunnels to bring their devastation to the night above. Although they always retreat underground before the first tentative rays of dawn color the eastern skies, they can spread an incredible amount of ruin in the span of a few short hours each night.
A nightcrawler is 60 feet long and weighs 10,000 pounds.