Spool Mite

tiny monstrosity, unaligned

D&D 5.5 / SRD 5.2

Challenge 0.125 (25 XP)

Available with DM subscription

STR

6 (-2)

DEX

16 (+3)

CON

8 (-1)

INT

2 (-4)

WIS

CHA

3 (-4)

Defense

Armor Class

13 (natural armor)

Hit Points

3 (2d4-2 -1)

Speed

20 ft., climb 20 ft.

Treasure & Loot Common

No significant treasure

Proficiencies & Senses

Saving Throws —

Skills

Stealth +5, Perception +2

Senses

Darkvision (60 ft.)

passive Perception 12

Characteristics

Damage Vulnerabilities

—

Damage Resistances

—

Damage Immunities

—

Condition Immunities

—

Languages understands Common but can't speak

Traits and Actions

Pack Tactics

Trait

The mite has advantage on an attack roll against a creature if at least one of the mite's allies is within 5 feet of the creature and the ally isn't incapacitated.

Pack Tactics. Standard SRD rule for swarming creatures.

Thread Dust Sense

Trait

The mite can detect the presence of loose thread or fabric within 10 feet by sensing vibrations in the air.

Custom Senses. Thematic sense for a vault-dwelling pest.

Scatter

Trait

When half the swarm is killed (e.g., 2 of 4 die), remaining mites flee toward cracks or holes as their move action on their next turn unless they can make an opportunity attack.

Fleeing. Swarm behavior mechanic.

Proboscis Bite

Action

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1 piercing damage plus 1d4 piercing damage. If the target is holding a weapon or tool, it must succeed on a DC 13 Dexterity saving throw or have the item tangled in silver thread. The item cannot be used until freed with an action.

Running the encounter

Combat Behavior

Combat Style

Skirmisher; clusters around targets, uses Pack Tactics, bites, then scatters if overwhelmed. Targets hands/tools to disable equipment briefly.

Appearance & presence

Monster Description

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