Towards the Hoard of a Hundred Horrors: Aurumvoraxes

Glorious is the sumptuary beast, with golden coat and silver claws, porphyrous teeth and velvet maw. Intolerant too, gruesomely so, of those who ape its exquisiteness. Fortunately for most, such beasts will only mate with their perfect equals, and attack all others of their own kind on sight.

Munificent is the royal weasel, who bends to the whims of its prince. Of who it chooses to serve none can say - more often pauper than true prince - but the bond is beyond death. Beyond reason as well, for every whim no matter how small is enacted by the royal weasel.

Terrible is the mauler, who breaks the necks of dragons under the weight of its jaws. Terribler still when hungered, for when hunting it kills abundantly beyond the filling of its belly. Terriblest yet when its princess is harmed, for none but its princess may calm its rage.

By another name,

They are

Aurumvoraxes

HD: 7 AC: 16, plus immune to fire and poison ATK: 1d8/1d8 Claws, or Spine-Cruncher SAV: 11 MOV: As swift horse, plus 30' leap INT: As clever beast, or as its prince(ss) when given explicit commands ML: 9, 12 when its prince(ss) is unconscious by injury or dead
No. Appearing: 1

Spine-Cruncher: The aurumvorax clamps its jaws around its target's neck, or the closest equivalent. The target must save vs. death or die instantly as their neck is crushed, or their head severed entirely. If they succeed, they take 2d8 damage and dislodge the aurumvorax. Spine-Cruncher works on targets up to 14 HD.

Killer Copper Pieces: Mangraves

Brack-anchored predatory trees, the elegant arched spindles of their roots gathering scabrous silt. Their bark is alabaster, their leaves a delicate, sensual pink - but they are consummate vegetable shapeshifters, able to match their appearance to surrounding plant-life. The wary can still spot them by their accompaniment: carrion-beetles, corpse-nibbling fish, and suchlike - and of course they become obvious when their sucker-tipped roots rear up from the water.

They hunt by detecting animal heartbeats. In turn, they are hunted by the people who share their coastal environments for their rich crimson sap, which can be worked into the finest rubber and plastic, or made into gum that is chewed to promote vitality. These tree-hunters take drugs to depress their heartbeat, using pumps in their palms and heels to quicken their blood-flow and prevent themselves from passing out*. Paddling out in canoes like drunken crocodiles they may sneak up on the trees and tap their sap. It is still an enormously dangerous profession, due to the flailing of tapped trees' roots, complications from the pumps and the drugs, and the other dangers of the coast which those precautions render them vulnerable to.

The enormously wealthy sometimes keep these trees in their gardens, "taming" the things by feeding them so much blood they don't bother to attack or disguise themselves.

They are

Mangraves

HD: 6 AC: 14 ATK: 4 Sucker-Roots SAV: 10  MOV: N/A INT: Dumb animal ML: 12
No. Appearing: 1d3

Sucker-Roots: 2 of a mangrave's roots can reach 30', and the other 2 can reach 15'. A successful attack from a sucker-root represents it sticking to you - for every round thereafter you will take 1d6 damage automatically until it is severed or otherwise detached. Against anyone with a sucker-root stuck to them, a mangrave may also make a grapple action in addition to draining their blood - trip them, hold them underwater, drag them closer, etc. A sucker-root takes 6 damage to sever - only half this is taken by the mangrave itself.

Mangraves surprise on a 3-in-6 unless one is moving at half-speed. Conversely, a mangrave can never be surprised unless one has altered their heart-rate by drugs or some other means.

* When they're not on the drugs they can do this:

 

 

If you know, you know. 

Killer Copper Pieces: Enfolders

(Killer Copper Pieces = the ones that don't make the cut for the Hoard of a Hundred Horrors)
((The idea for enfolders came to me in a dream)) 

The stuff of the underworld, like radiation, can contaminate the bodies of those who eat of its creatures and breathe its fetid air. This contamination tends to concentrate in the skin, and so those who delve into the underworld tend to collect tattoos, scars, and piercings like iodine tablets - as much superstition as true abjuration.

Those unlucky ones in whom the contamination reaches a critical point will find their skins slacken and fuse to the surfaces of the underworld, taking on the properties of its stone and wood and suchlike, their shrivelled bodies beneath their stony yet disturbingly-pliable hides sustained in a miserable half-life by their root.

This transformation has a distinctive feeling, so enfolders tend to be found in two sorts of places - near entrances to the dungeon, the results of desperate, failed escapes, and near treasures worth risking a fate worse than death to acquire.

Sometimes referred to as Stuck Willies (and brickjackets and stonemoaners and etc.) - every dead and near-enough-to-dead adventurer in the world below is a Willy - regular corpses are Stiff Willies, sheet ghouls are Slick Willies, and so on and so forth.

They are

Enfolders

HD: 2 AC: 10, plus Brickjacketed ATK: Enfolding, Stonemoaning SAV: 12  MOV: As walking person - can't go beyond 30 feet of their root INT: As person after decades of solitary confinement ML: 10
No. Appearing: 1d6

Brickjacketed: Enfolders have 5 damage reduction against everything but picks, explosives, and whatever else could crack solid rock - unless the attack is targeting an opening in their skin. 

Enfolding: An enfolder will always grapple on a successful hit. Initially this grapple has a strength of 12 - this strength increases by 4 every round you remain grappled by the enfolder, as it envelopes you in its skin. After the grapple reaches 20 strength you begin suffocating.

Stonemoaning: Enfolders that spot a person will begin to moan hoarsely. Every round an enfolder is moaning there is a 2-in-6 chance of a wandering monster showing up to investigate. Enfolders cease moaning the moment they cannot see any people.