Death by a Thousand Claws (RPG Blog Carnival)

This months blog carnival from The Other Side has the topic of Horror and Fantasy - so I was inspired to write about implementing the dread of the onrushing doom.
Thinking through what is dreadful and horrifying to a group of typically well armed and cunning adventurers, I had a few thoughts - most of which stem from lack of knowledge.

Menace for highly experienced players are signs that point to multiple dangerous options, signs not clear enough to allow countermeasures to be chosen. Menace to newbies is anything, with the caveat that they will not recognise the threat signs more experienced players would nor understand the scale of thing they might face in some cases. The weird monster is a traditional approach - like critters from Fire on the Velvet Horizon - things operating out of a non-standard game-space where the players do not know the rules this monster is operating.

Tricks to pull this off are
- reskin monsters - the familar becomes unrecognisable
- tweak abilities - the element of an attack or the stat that is attacked

These root in the horror of doom, which requires finesse to avoid tipping into despair - you want the grim, tense silence of the narrow margin fight around the table not the glum resignation of the lost battle.

ONe thought on making this work - you want a monster which is difficult to pick off at range or en masse - very few hit points, comes in groups, glass-hammers some stat-drain then dies.

Our concept here would be the horde of little things of which any individual one is not hard to deal with, and you're unlikely to get hit by any given one, but should they manage to lay a hand on you, that is damage.

Darkling Wisp (B/X)
AC 6, HD 1-1, #AT 1, D 1+special, MV (30’), Save F 2, ML 12, No. Appearing 1d6
If a darkling wisp scores a hit, it drains a point of Constitution in addition to normal damage. This lasts for 24 hours.

In pitch darkness it has a faint violet flickering outline, somewhat ball-like with a suggestion of mephit-like wings and spindly limbs. In light it appears as a scintillating shadow of the same. They pop into existence in hordes at places where the veil between the Feywild or Shadowfell is changing, typically dawn or dusk, lunar cycles or seasons turnings. They rush in hordes for a time, snatching vitality from whatever they encounter, before flickering out of existence. Prolonged exposure to these things cause the lands where the veil is thin to have their ephemeral aspect.

Darkling Wisp (5e) Small fey, chaotic evil

Armor Class 12
Hit Points 4 (1d6)
Speed 30 ft.

STR DEX CON INT WIS CHA
6 (-2) 14 (+2) 10 (0) 6 (-2) 10 (+0) 8 (-1)
Skills Stealth +4
Damage Vulnerabilities radiant
Damage Resistances acid, cold, fire, lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities necrotic, poison
Condition Immunities exhaustion, frightened, grappled, paralyzed, petrified, poisoned, prone, restrained
Senses darkvision 60 ft., passive Perception 10
Languages –
Challenge 1/4 (50 XP)

Darkling Touch: Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 1pt necrotic damage and the target’s Constitution score is reduced by 1d4. The target dies if this reduces its Constitution to 0. The target can recover their level worth of Constitution points when they finish a long rest.