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Blight-Drift Stalker - AI-generated fantasy Monster

Blight-Drift Stalker

Elven scouts call them the 'Whispering Death' because the sound of their movement is indistinguishable from a gentle autumn breeze blowing through trees. Legends say they were originally created by a circle of druids to protect the elven borders during a long-forgotten war.

Monsters
Large elemental · CR 5 · Rare

Blight-Drift Stalker

A sentient mass of razor-sharp autumn leaves bound by a core of necrotic sap, acting as a natural trap within elven forests.
AC15
HP97/97
CR5
Init
STR
DEX
CON
INT
WIS
CHA
ConditionsNone

Combat

AC 15 · HP 97 · CR 5

Blight-Drift Stalker

Large elemental (plant), neutral evil
Armor Class15 (Natural Armor)
Hit Points97 (13d10 + 26)
Speed
40 ft. walk,
40 ft. climb
STR
DEX
CON
INT
WIS
CHA
Saving ThrowsDexterityConstitution
SkillsStealthPerception
Damage Resistances
Piercing and Slashing from non-magical attacks
Immunities
Poison,
Condition: Blinded,
Condition: Deafened,
Condition: Poisoned,
Condition: Prone
Weaknesses
Fire Damage
Senses
Blindsight 60 ft. (blind beyond this radius),
Passive Perception 14
Languages
Understands Sylvan but cannot speak
Challenge5
Proficiency Bonus+3
False Appearance. While the stalker remains motion-less, it is indistinguishable from a normal pile of leaves.
Amorphous Form. The stalker can move through a space as narrow as 1 inch wide without squeezing.
Grasping Sap. A creature that touches the stalker or hits it with a melee attack while within 5 feet of it must succeed on a Strength saving throw or be grappled by the sticky black sap.

Actions

Multiattack. The stalker makes two Razor-Leaf Lash attacks.
Razor-Leaf Lash. Melee Weapon Attack: to hit, reach 10 ft., one target. Hit: 13 () slashing damage plus 4 () necrotic damage.
Leaf-Storm (Recharge 5 to 6). The stalker disperses its body into a 20 foot radius whirlwind of blades. Each creature in that area must make a Dexterity saving throw. On a failure, a creature takes 21 () slashing damage and is Blinded until the end of the stalker's next turn. On a success, the creature takes half damage and isn't blinded. The stalker then reform in an unoccupied space within the area.

Reactions

Autumnal Fade. When the stalker takes damage, it can use its reaction to take the Hide action if it is in an area of foliage or debris.
Role
Ambush Predator
Built for
Level 4 to 6

Feats

Alert
Stealthy

Notes for the game master

High mobility allows it to strike and fade.
The Leaf-Storm is its primary tool for crowd control.
Vulnerable to fire, which can cause its sap to boil and its leaves to incinerate.

Tactics

  1. Opening

    The stalker waits for a target to step within 10 feet before using its Leaf-Storm to blind as many targets as possible.

  2. Mid-fight

    It focuses on blinded or grappled targets, using Multiattack to whittle down the weakest party members while using its movement to avoid being pinned down.

  3. End of the fight

    If reduced to below 20 hit points, it uses Leaf-Storm one last time to cover its escape or to deal maximum damage before collapsing.

  4. Retreat

    If its sap core is exposed (usually by fire damage), it will attempt to flee into the upper canopy of the trees or deep into leaf drifts.

How it fights

Uses its 10 foot reach to attack from behind obstacles.
Prioritizes casters who use fire spells.
Stays mobile to prevent players from flanking its core.

Who it attacks first

Spellcasters using fire or area of effect spells.
Targets that have been blinded by Leaf-Storm.
Physically weak characters standing near foliage.

Works well with

Can be paired with Dryads who can charm enemies into the stalker's reach.
Works well with Willowisp-like creatures that distract players.

How to beat it

Fireball or Burning Hands to exploit its weakness.
Spells like Gust of Wind to disperse its form.
High Perception or Detect Magic to spot it while it is hidden.

Ways to avoid a fight

A druid or ranger could use Animal Handling or Survival to soothe the creature if they possess an offering of pure forest water.
Using a high-level nature check to recognize the sap can be neutralized with salt.

Ecology

At rest, the Stalker looks like a harmless, waist-high pile of damp autumn leaves. When it stirs, the leaves churn into a violent vortex. A thick, obsidian-black sap serves as the creature's circulatory system, visible as pulsing veins between the vibrant red and orange leaves that form its body.

Behavior

It remains perfectly still for days, waiting for the vibration of footsteps. It does not hunt for food in a traditional sense but rather seeks to mulch organic matter into the soil to feed the black sap core. It is territorial and aggressive toward anything that disturbs the silence of the forest floor.

How it lives

The Stalker is often the result of elven blood spilled on a sacred grove during the harvest moon. It serves as a grim recycling system, breaking down intruders into nutrients for the corrupted forest.

Lair

Typically found in hollowed-out ancient stumps or the shaded floor of golden-leafed groves where it can remain hidden.

Habitat
Autumnal forests, elven ruins, leaf-filled dungeons, and Feywild borderlands.

Signs that it is near

Unnaturally large piles of leaves that do not move with the wind
Stains of black, sticky sap on nearby bark
The skeletal remains of animals stripped of flesh
A faint scent of rotting cider and metallic blood

Tags

Ambusher,
Forest-Dweller,
Construct-adjacent

Lore

Elven scouts call them the 'Whispering Death' because the sound of their movement is indistinguishable from a gentle autumn breeze blowing through trees. Legends say they were originally created by a circle of druids to protect the elven borders during a long-forgotten war.

What drives it

To protect its territory and expand the reach of the necrotic sap by consuming biological material.

After the fight

Once defeated, the stalker dissolves into a pile of ordinary, rotting leaves and a pool of inert black sludge. The area feels strangely empty, as if a weight has been lifted from the forest's forest's spirit.

Variants

Frost-Drift Stalker: Deals cold damage instead of necrotic and is found in winter.
Bloom-Drift Stalker: Made of spring petals, causes the poisoned condition via pollen.

Hooks

Plot hooks

A local elven village reports that their leaf-gathering parties are disappearing without a trace.
A rare alchemist needs the black necrotic sap of a Blight-Drift Stalker to create a powerful anti-venom.
The autumn festival is cancelled because the ritual grove has 'come alive' and is attacking people.

How to use it

As a guardian of a hidden elven pathway.
A trap inside a dungeon filled with seasonal debris.
A pack of 2 to 3 for higher level parties (CR 10 to 12 encounter).

Treasure

3d6 Black Sap Phials (used as an ingredient for Poison or Potion of Necrotic Resistance)
A small elven signet ring found in its core (worth 50 gold)
The ground where it dies becomes magically fertile for 10 years.

Media

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