Darkmantle

As this creature falls from the cavern roof, it opens like a hideous octopus, its thin, hook-lined tentacles connected by a fleshy web.

This content is from the Paizo Core Rules.

Source: Paizo Blog.

Darkmantle CR 1

XP 400     N Small magical beast Init +6; Senses Blindsight 90 ft., Darkvision 60 ft., Low-Light Vision; Perception +4

DEFENSE

AC 15, touch 13, flat-footed 13 (+2 Dexterity, +2 natural, +1 size)     hp 15 (2d10+4) Fort +5, Ref +3, Will +0

OFFENSE

Speed 20 ft., Fly 30 ft. (poor)     Melee slam +3 (1d4 plus grab) Special Attacks constrict (1d4+4), grab (any size) Spell-Like Abilities (CL 5th) 1/day—darkness

STATISTICS

Strength 11, Dexterity 15, Constitution 14, Intelligence 2, Wisdom 11, Charisma 10     Base Atk +2; CMB +1 (+5 grapple); CMD 13 (can’t be tripped) Feats Improved Initiative Skills Fly +5, Perception +4, Stealth +10; Racial Modifiers +4 Perception, +4 Stealth

ECOLOGY

Environment any underground     Organization solitary, pair, or clutch (3–12) Treasure none

Lore

Characters with ranks in Knowledge (arcana) or Knowledge (dungeoneering) can learn more about darkmantles. When a character makes a successful skill check, the following lore is revealed, including the information from lower DCs.

Knowledge(arcana) or Knowledge (dungeoneering)

DC	Result
11	This squid-like dark-skinned creature is a darkmantle, a subterranian predator that attacks by dropping onto its prey. This result reveals all magical beast traits.
16	Though small creatures, darkmantles are strong for their size, and make natural grapplers due to their tentacles and cloak-like skin. Typically attacking by dropping from above, a darkmantle that misses will usually fly back up to the roof of its chamber and try again.
21	As well as having a natural camouflage that allows them to hide easily in underground caverns, darkmantles can also cause darkness once per day. Darkmantles see easily through this magical darkness through the use of bat-like sonar, though this can be disrupted by the use of the silence spell.

Monster Lore from WOTC Community Forums – Monsters and Races – Monster Lore Compendium. Copyright 2007-2008, Author: Evandar_TAybara

A darkmantle’s tentacle-span measures just under 5 feet – when attached to a cave roof and disguised as a stalactite, its length varies from 2 to 3 feet. A typical darkmantle weighs 40 pounds. The creatures’ heads and bodies are usually the color of basalt or dark granite, but their webbed tentacles can change color to match their surroundings.

The darkmantle isn’t a particularly good Climber, but it can cling to a cave roof like a bat, hanging by the hooks at the ends of its tentacles so that its dangling body looks nearly indistinguishable from a stalactite. In this hidden position, the darkmantle waits for prey to pass beneath, at which point it drops and swoops down to attack its victim, slamming its body against the foe and attempting to wrap its webbed tentacles around the target. If the darkmantle misses its prey, it swoops back up and drops again until its prey is vanquished or the darkmantle is grievously injured (in which case the creature flutters back up to the roof to hide and hope its “prey” leaves it alone). The darkmantle’s inborn ability to cloak the area around it in magical darkness gives it an additional advantage over foes that rely upon light to see.

Darkmantles prefer to dwell and hunt in the caves and passageways that are closest to the surface, as these tend to possess more traffic for the monsters to feed upon. Yet they do not confine themselves to these dark caverns, and can sometimes be found dwelling in ruined fortresses or even in the sewers of bustling cities. Anywhere food is plentiful and there’s a ceiling to cling to is a possible den for a darkmantle.

A darkmantle’s life cycle is swift – young grow to maturity in a matter of months, and most die of old age after only a few years. As a result, generations of darkmantles quickly accrue, and over the years the evolution of these creatures is similarly swift. In this manner, a cavern’s ecosystem can have a significant effect on a group of darkmantles’ appearance, abilities, and tactics. Aquatic caverns might develop  darkmantles that can swim, while those beset with volcanism might generate darkmantles with a resistance to fire. Other darkmantle variants might develop much stonier hides, and instead of swooping down to crush prey might simply drop and pierce them through with their stalactite-like lengths. The deepest, darkest caverns are rumored to host darkmantles of incredible size, capable of smothering multiple human-sized foes at once in their leathery folds.