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Glass-Cursed Stalker - AI-generated fantasy Monster

Glass-Cursed Stalker

Long ago, a master thief attempted to rob the Glass Weaver's sanctum. The Weaver did not kill the thief but turned him into the very material he sought to steal. Now, anyone caught by the Weaver's 'Prismatic Gaze' trap joins the ranks of the Stalkers.

Monsters
Medium elemental · CR 3 · Rare

Glass-Cursed Stalker

Former thieves transformed into crystalline sentinels by a gallery's magical traps, existing as living prisms that seek to destroy intruders through self-sacrifice.
AC15
HP45/45
CR3
Init
STR
DEX
CON
INT
WIS
CHA
ConditionsNone

Combat

AC 15 · HP 45 · CR 3

Glass-Cursed Stalker

Medium elemental (cursed humanoid), neutral evil
Armor Class15 (Natural Armor)
Hit Points45 (10d8 + 0)
Speed
30 ft. walk
STR
DEX
CON
INT
WIS
CHA
Saving ThrowsDexterity
SkillsStealthPerception
Damage Resistances
Slashing and Piercing from nonmagical attacks
Immunities
Poison,
Psychic
Weaknesses
Bludgeoning,
Thunder
Senses
Darkvision 60 ft.,
Passive Perception 13
Languages
Understand Common but cannot speak
Challenge3
Proficiency Bonus+2
Refractive Invisibility. While in bright light, the stalker is invisible. It still casts a shadow. A creature can see the shadow with a successful Wisdom (Perception) check. If the stalker is in dim light or darkness, it is visible as a faint, shimmering outline.
Fragile Frame. The stalker has vulnerability to bludgeoning and thunder damage. If it takes more than 15 damage from a single bludgeoning or thunder attack, its movement speed is halved until the end of its next turn as it struggles to hold its form together.
False Appearance. While the stalker remains motionless, it is indistinguishable from a glass statue.

Actions

Glass Dagger. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 11 () piercing damage. On a critical hit, the target takes an extra 7 () piercing damage as glass shards break off inside the wound.
Shatter Leap. The stalker leaps up to 20 feet toward a target and deliberately shatters upon impact. The stalker is destroyed. Each creature within 10 feet of the stalker must make a Dexterity saving throw. On a failed save, a creature takes 21 () piercing damage. On a successful save, the creature takes half as much damage.

Reactions

Sudden Fracture. When the stalker is hit by a melee attack, it releases a spray of fine glass dust. The attacker must succeed on a Constitution saving throw or be Blinded until the end of their next turn.
Role
Glass Cannon Ambusher
Built for
Level 5 (encountered in groups of 3 to 4)

Gear

  • Stolen Memory Shard (Oddity, 50 gp)A fragment of glass that displays the final image the thief saw before being cursed.

Feats

Mobile

Notes for the game master

Prioritize using Shatter Leap when below 10 HP
Use Stealth to move between pools of light to remain invisible

Tactics

  1. Opening

    The stalkers wait in the brightest areas of the room, standing still as statues. They wait for the party to be surrounded before moving.

  2. Mid-fight

    They use their high mobility to reach the backline, targeting casters with their Glass Daggers while staying in the light to remain invisible.

  3. End of the fight

    Once reduced to low health, they use Shatter Leap to maximize damage against grouped-up enemies, essentially turning themselves into organic grenades.

  4. Retreat

    The stalkers never retreat; the curse binds them to the location until they are destroyed or the curse is lifted.

How it fights

Attack from the side where the shadow is cast away from the target
Focus on targets with the lowest AC to ensure their brittle daggers hit
Move in a zig-zag pattern to confuse enemies relying on shadow-tracking

Who it attacks first

Clerics or Bards (Healers)
Wizards (due to low AC)
Creatures holding a Torch or Light spell source

Works well with

Pairs well with Mirror Golems that create multiple reflections
Synergizes with light-based traps that keep the room in Perpetual Bright Light
Works with enemies that can shove players into the Stalker's shatter radius

How to beat it

Shatter spell (deals high thunder damage)
AoE spells that hit the space the shadow occupies
Darkness spell (makes them visible outlines)

Ways to avoid a fight

A PC can attempt to dispel the curse with Greater Restoration, turning the stalker back into a terrified, shivering thief
Casting 'Silence' prevents their tinkling noise from betraying their position but also weakens their 'Sudden Fracture' resonance

Ecology

A perfectly transparent humanoid figure made of polished, architectural-grade glass. While their bodies are nearly impossible to see in bright light, they cast long, jagged shadows that betray their position. Internal cracks shimmer like veins when they move.

Behavior

They remain motionless in galleries, posing as avant-garde statues. They prioritize targets holding light sources, as the light makes the stalkers harder to see while emphasizing their lethal nature.

How it lives

As cursed beings, they do not eat, breathe, or sleep. They are sustained by the lingering magic of the curse that transformed them. They exist only to preserve the silence of their tomb.

Lair

The Luminous Vaults, a series of rooms mirrored from floor to ceiling with intense magical lighting.

Habitat
Wizard towers, high-end art galleries, royal treasuries, and ancient vaults.

Signs that it is near

High-pitched tinkling sounds like wind chimes
Shadows that move independently of the light source
Tiny, razor-sharp transparent dust on the floor
Distorted reflections in nearby mirrors

Tags

Invisible,
Construct-adjacent,
Ambush

Lore

Long ago, a master thief attempted to rob the Glass Weaver's sanctum. The Weaver did not kill the thief but turned him into the very material he sought to steal. Now, anyone caught by the Weaver's 'Prismatic Gaze' trap joins the ranks of the Stalkers.

What drives it

Consumed by a mix of eternal greed and the agony of their brittle existence, they wish to 'share' their curse by embedding their glass shards into the flesh of the living.

After the fight

Once defeated, the stalker leaves behind nothing but a pile of mundane glass shards and the non-magical items they were carrying when they were cursed, such as a set of thieves' tools or a lockpick.

“The Weaver did not kill the thief but turned him into the very material he sought to steal.”
From its lore

Variants

Obsidian Stalker: Resistant to fire, black glass, invisible in darkness instead of light
Stained-Glass Stalker: Causes psychic damage and creates colorful hypnotic patterns

Hooks

Plot hooks

A famous thief went missing in the local gallery; his sister hires the party to find him.
The statues in the museum are moving at night and cleaning the floors with the blood of night guards.
A wizard needs a 'pure glass heart' harvested from a Glass-Cursed Stalker for a ritual.

How to use it

A trap-filled hallway in a noble's manor
An boss room protector in a sun-temple
A 'living art' exhibit that went wrong

Treasure

Prismatic Dust (used for crafting Potions of Invisibility)
Intact Glass Hands (rare art objects worth 200gp each)

Media

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