Black Fly Swarm (3.5e Monster)

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Author: Bhu (talk)
Date Created: 09/29/2015
Status: Finished
Editing: Clarity edits only please
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Black Fly Swarm
Size/Type: Fine Outsider (Evil, Extraplanar, Lawful)
Hit Dice: 12d8+12 (66 hp)
Initiative: +5
Speed: Fly 30 ft. (6 squares), Good
Armor Class: 23 (+8 Size, +5 Dex), touch 23, flat-footed 18
Base Attack/Grapple: +12/-
Attack: Swarm (3d6 plus disease)
Full Attack: Swarm (3d6 plus disease)
Space/Reach: 10 ft./0 ft.
Special Attacks: Distraction, Panic, Waken the Dead, Dark Magic
Special Qualities: Damage Reduction 10/Magic, Darkvision 60 ft., Immune to Weapon Damage, Low Light Vision, Swarm Traits, Immunities (Fire, Poison, Disease)
Saves: Fort +11, Ref +13, Will +11
Abilities: Str 1, Dex 20, Con 12, Int 3, Wis 12, Cha 12
Skills: Hide +28, Listen +8, Knowledge (Arcana, Religion, The Planes) +4, Intimidate +9, Search +3, Spot +8
Feats: Ability Focus (Diseased Bite, Panic), Great Fortitude, Hover, Iron Will
Environment: Any, usually the 9 Hells of Baator
Organization: Solitary, Scourge (2-4), Blight (5-8)
Challenge Rating: 8
Treasure: None
Alignment: Always Lawful Evil
Advancement: None
Level Adjustment: ---

"Flies are more than just biting vermin Jericho. Their origin is in a place darker than this world. The day we found your mother dead in the field it was swarming with flies, but noticeably not one was touching her. The day we were forced to put her in the ground a second time they were not so choosy."

Black Flies are the swarms that abide in the 9 Hells, and are rarely seen elsewhere unless summoned or sent for a purpose. They are often used to torment the opponents of Devilish cults. The Flies are also an incredible nuisance, poisoning the land, waking the dead, and increasing evils power in general. Sightings of swarms is often a sign that bad things are afoot, such as an open Gate or a possession. They understand Common and Infernal, but cannot speak either.


Black Flies pretty much attack the way all swarms do, by swarming. Despite their slightly higher Intelligence they still aren't very tactical.

Distraction(Ex): Any opponent that begins its turn within a swarm of Black Flies must make a DC 17 Fortitude Save or be Nauseated for 1 round. Save DC is Constitution Based.

Diseased Bite(Ex): Any opponent damaged by the swarms Swarm attack must make a DC 19 Fortitude Save or contract Devil Chills (see DMG page 292, Save DC is Constitution based).

Panic(Su): Any opponent that begins it's turn within a swarm of Black Flies must make a DC 19 Willpower Save or be Panicked for 1 round. Save DC is Charisma based, if the opponents Save is successful he is immune to this Black Fly Swarms Panic ability for 24 hours.

Waken the Dead(Su): Any corpse touched by the swarm or within it's area animates as per the Animate Dead spell. However the undead aren't controlled by the Swarm (although they will not attack it), and there is no limit to how many Undead they can animate. This ability is continuous and requires no action on the part of the swarm.

Dark Magic(Su): All spells or spell like abilities from the Necromancy school or that have the Evil descriptor have their Save DC increased +4 while cast within 30 ft. of a swarm of Black Flies (unless the spell is being cast on the swarm).

Back to Main Page3.5e HomebrewMonsters

AlignmentAlways Lawful Evil +
AuthorBhu +
Challenge Rating8 +
EnvironmentAny, usually the 9 Hells of Baator +
Identifier3.5e Monster +
Level Adjustment--- +
RatingUndiscussed +
SizeFine +
SubtypeEvil +, Extraplanar + and Lawful +
TitleBlack Fly Swarm +
TypeOutsider +