Swarm of Gibberlings

(Quests from the Infinite Staircase)

Large fiend, Chaotic Evil

Armor Class12
Hit Points38 (7d10)
Speed30 ft.
STRDEXCONINTWISCHA
18 (+4) 14 (+2) 11 (+0) 5 (-3) 7 (-2) 5 (-3)
Saving Throws—
Skills—
Damage Vulnerabilities—
Damage Resistancesbludgeoning; piercing; slashing
Damage Immunities—
Condition Immunitiescharmed; frightened; grappled; paralyzed; petrified; prone; restrained; stunned
Sensesdarkvision 120 ft., passive Perception 8
LanguagesGibberling
Challenge3

Traits

Aversion to Fire.

If the swarm takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.

Incessant Gibberish.

Any non-gibberling that is within 60 feet of the swarm and doesn't have the deafened condition has disadvantage on Constitution saving throws to maintain concentration on spells and similar effects.

Swarm.

The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough to accommodate a Small gibberling. The swarm can't regain hit points or gain temporary hit points.

Actions

Multiattack.

The swarm makes two Gnashing Teeth attacks.

Gnashing Teeth.

Melee Attack Roll: +6 to hit, reach 0 ft., one target in the swarm's space. Hit: 14 (4d4 + 4) piercing damage, or 9 (2d4 + 4) piercing damage if the swarm has half of its hit points or fewer.