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Flame Eater Swarm

A cloud of ash and fire draws closer, revealing itself to be dozens of tiny, soot-covered bats.

Medium swarm of Tiny beasts, unaligned

Armor Class 12
Hit Points 33 (6d8 + 6)
Speed 0 ft., fly 40 ft.

STR DEX CON INT WIS CHA
3 (–4) 15 (+2) 12 (+1) 2 (–4) 14 (+2) 4 (–3)

Damage Resistances bludgeoning, piercing, slashing
Damage Immunities fire
Condition Immunities charmed, frightened, paralyzed, petrified, prone, restrained, stunned
Senses blindsight 30 ft., passive Perception 12
Languages
Challenge 2 (450 XP)

Special Traits

  • Consume Flame. Any normal fire in the flame eater swarm’s space at the end of the swarm’s turn is extinguished. Magical fire (a flaming weapon or wall of fire spell, for example) is extinguished if the swarm makes a successful DC 13 Constitution check. Only the swarm’s space is affected; fires larger than the swarm continue burning outside the swarm’s space. For 1 minute after the swarm consumes any flame, its bite attack deals an extra 9 (2d8) fire damage and any creature that ends its turn in the swarm’s space takes 4 (1d8) fire damage.
  • Swarm. The swarm can occupy the same space as another creature and vice versa. The swarm can move through any opening large enough for a Tiny bat. The swarm can’t regain hp or gain temporary hp.

Actions

  • Multiattack. The swarm can make two bite attacks.
  • Bite. Melee Weapon Attack: +4 to hit, reach 0 ft., one creature in the swarm’s space. Hit: 7 (2d6) piercing damage, or 3 (1d6) piercing damage if the swarm has half of its hp or fewer.

About

These creatures were bred as part of the schemes of cultists of the demon lord of bats, in the hope of creating a massive swarm of beasts that could fly to the sun and consume it. It’s unlikely this ever could have worked, even if the creatures had turned out as intended, but something went horribly wrong during the ritual. What resulted was flame eaters: highly dangerous creatures that swarm into flying clouds, consume fire, and attack any creatures they encounter. They ignite flammable material, causing more fires, which the flame eaters devour and spread to other areas.

Bane of the Living. These creatures are hated and feared by most living things.

Even derros and their fellow insane cultists who created flame eaters are sometimes forced to eradicate the beasts for their own safety.

Fire Cloud. Individually, a flame eater resembles an ash-colored bat with an oversized head, distended jaws, and glowing red eyes. As a swarm, they resemble a cloud of swirling embers.

Section 15: Copyright Notice

Creature Codex. © 2018 Open Design LLC; Authors Wolfgang Baur, Dan Dillon, Richard Green, James Haeck, Chris Harris, Jeremy Hochhalter, James Introcaso, Chris Lockey, Shawn Merwin, and Jon Sawatsky.