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Mist-Stalker Deinonychus - AI-generated fantasy Monster

Mist-Stalker Deinonychus

Legend says a pack of Deinonychus lived in the ruins of a chronomancer's tower, and the exposure to temporal residues granted them high intelligence and an obsession with 'modern' tools. Locals know to listen for the clicking in the fog: if the clicking stops, they are already behind you.

Medium monstrosity · Medium (Individual) / High (Pack) · Rare

Mist-Stalker Deinonychus

Scavenging ambush raptors with uncanny coordination
AC15
HP45/45
CRMedium (Individual) / High (Pack)
Init
STR
DEX
CON
INT
WIS
CHA
ConditionsNone

Combat

AC 15 · HP 45 · Medium (Individual) / High (Pack)

Mist-Stalker Deinonychus

Medium monstrosity (dinosaur), neutral evil
Armor Class15 (Natural Armor and Scavenged Gear)
Hit Points45 (7d8 + 14)
Speed
40 ft. walking,
15 ft. climbing
STR
DEX
CON
INT
WIS
CHA
Saving ThrowsDexterity
SkillsStealthPerceptionSurvival
Damage Resistances
None
Immunities
None
Weaknesses
None
Senses
Passive Perception 13,
Scent (Advantage on Wisdom checks based on smell)
Languages
Mist-Stalker Clicks
ChallengeMedium (Individual) / High (Pack)
Proficiency Bonus+2
Pack Tactics. The Mist-Stalker has advantage on an attack roll against a creature if at least one of the stalker's allies is within 5 feet of the creature and the ally isn't incapacitated.
Pounce. If the Mist-Stalker moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a Strength saving throw or be knocked prone. If the target is prone, the Mist-Stalker can make one bite attack against it as a bonus action.
Mist Camouflage. The Mist-Stalker can take the Hide action as a bonus action while it is in an area that is lightly obscured by fog or mist.
Scavenged Armor. The creature's AC includes bits of explorer gear. If a critical hit is dealt to the Mist-Stalker, a piece of its gear breaks; its AC is reduced by 1 until the end of the encounter or it finds new scrap.

Actions

Multiattack. The Mist-Stalker makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 7 () piercing damage.
Claw. Melee Weapon Attack: to hit, reach 5 ft., one target. Hit: 6 () slashing damage.
Tactical Clicking. The Mist-Stalker emits a series of clicks to direct an ally. One allied Mist-Stalker within 30 feet that can hear it can use its reaction to move up to half its speed without provoking opportunity attacks.

Reactions

Vanish into Mist. When a Mist-Stalker is targeted by a ranged attack and is in fog or mist, it can move 10 feet into total concealment. If this movement takes it out of the attacker's line of sight, the attack is made with disadvantage.
Role
Ambusher
Built for
4

Gear

  • Explorer Scraps (Armor, 10 gp)Assorted plates and leather straps salvaged from victims.

Notes for the game master

Encounter this creature in a pack of exactly three for maximum effectiveness.
Intelligence is unusually high for a dinosaur, allowing them to understand simple traps and flanking.

Tactics

  1. Opening

    The pack hides in the fog. One raptor makes a clicking sound from the left to draw attention, while the other two use Pounce from the right and rear.

  2. Mid-fight

    They use Tactical Clicking to constantly reposition. If a target is knocked prone, all nearby Mist-Stalkers prioritize biting that target to trigger Pack Tactics.

  3. End of the fight

    If two members are dead, the final stalker uses its bonus action Hide to escape into the fog, waiting to stalk the party later when they rest.

  4. Retreat

    Mist-Stalkers retreat if they lose more than 50 percent of their HP unless they have a target pinned.

How it fights

Always stay in fog for bonus action Hide.
Focus fire on the target with the lowest AC or least movement.
Use the environment to stay out of line of sight between turns.

Who it attacks first

Vulnerable spellcasters using light-based spells
Isolated scouts
Creatures wearing shiny heavy armor

Works well with

Shambling Mounds (the raptors hide in the fog the mound produces)
Hags (the hags provide the illusory mist, the raptors provide the teeth)

How to beat it

Spells like Gust of Wind or Control Weather to clear fog.
Faerie Fire to prevent them from hiding.
Area of effect spells that cover their hiding spots.

Ways to avoid a fight

A character who speaks Saurian or has high Animal Handling could potentially distract them with high-quality metal or leather gear.
Bribing them with 'shiny' items can stall an attack for 1d4 rounds.

Ecology

These lean dinosaurs have sleek, pebbled skin colored in mottled grays and faded greens. They stand about six feet tall and weigh 200 pounds. Unlike common raptors, they wear scavenged gear from explorers: rusted chainmail patches wired to their chests, leather bracers tied around their legs, and even a cracked brass spyglass dangling like a charm. Their eyes are a piercing, intelligent amber.

Behavior

Mist-Stalkers behave more like a tactical unit than animals. They communicate through complex sequences of clicks, chirps, and low whistles that sound like forest ambience to the untrained ear. They rarely attack unless they have an advantage, preferring to circle prey in heavy cover and wait for a moment of distraction.

How it lives

The Mist-Stalkers represent an evolutionary or magical shift in saurians, developing social structures similar to wolves or goblin scouts. They are apex predators that selectively target travelers carrying high-quality metal or leather, showing a strange preference for 'decorating' themselves with human-made items.

Lair

They nest in dense thickets of 'Ghost-Ferns' where visibility is naturally low. Their dens are often littered with the metallic remains of previous victims, which they keep because they enjoy the reflection and sound of metal.

Habitat
Foggy marshes, mist-veiled jungles, and humid highlands.

Signs that it is near

Discarded boots with the feet still inside
Strange, rhythmic clicking echoing through the mist
Three-toed footprints that lead in circles
Bits of colorful fabric snagged on low branches

Tags

Pack Hunter,
Cunning,
Scavenger

Lore

Legend says a pack of Deinonychus lived in the ruins of a chronomancer's tower, and the exposure to temporal residues granted them high intelligence and an obsession with 'modern' tools. Locals know to listen for the clicking in the fog: if the clicking stops, they are already behind you.

What drives it

Hunger and a strange, magpie-like desire to collect shiny or protective bits of gear.

After the fight

The silence that follows a Mist-Stalker attack is heavy. If the party survives, they find the fog thinning, revealing that the raptors were lead away by the smell of something else, or perhaps they are just waiting for the party to drop their guard again.

Variants

Mist-Alpha: CR 4, has 60 HP and can use a roar to frighten targets.
Rust-Drake: CR 3, their scavenged gear is magically rusted, causing an extra 1d4 necrotic damage.

Hooks

Plot hooks

A local caravan went missing; only a single, perfectly licked-clean brass helmet was found.
The party is hired to recover a signet ring worn by a raptor that specifically targets nobility.
A naturalist wants to know why these dinosaurs are suddenly wearing clothes.

How to use it

As a specialized ambush squad in a swamp or misty woods.
As 'guard dogs' for a more powerful intelligent jungle entity.

Treasure

One Cracked Brass Spyglass (worth 100 gp)
A pouch containing 25 gp and a bloodstained map
Usable set of Leather Armor (requires cleaning)

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