Attack Fly (5e Creature)

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Attack Fly[edit]

Tiny beast, unaligned

Armor Class 12
Hit Points 1 (1d4 - 1)
Speed 0 ft., fly 20 ft.

1 (-5) 14 (+2) 8 (-1) 1 (-5) 8 (-1) 2 (-4)

Skills Stealth +4
Proficiency Bonus +2
Senses darkvision 30 ft., passive Perception 9
Challenge 0 (10 XP)

Filth Fever. If a living creature takes any damage from the fly's bite, during its next short rest it must succeed on a DC 10 Constitution saving throw against disease or contract filth fever.


Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 1 piercing damage.

An attack fly is an aggressive cousin of the black fly, with a distinctive shimmering red body. They can be found anywhere there is filth and decay. They will mindlessly pursue other living creatures but are only dangerous when they swarm.

Variant: Moter[edit]

It is not uncommon to find two conjoined flies. In such a state, they are known as a "moter" and act as a single creature with the above statistics, except with 2 hit points. If it is attacked with a weapon, it can use its reaction to split into two attack flies, each moving up to 5 feet without provoking an opportunity attack. The attack misses unless a fly remained in its original location.

Variant: Swarm[edit]

For a swarm of attack flies, use the swarm of insects (Monster Manual p. 338): it has a walking speed of 5 feet, a fly speed of 20 feet, and no climbing speed. In addition, any creature hit by the swarm's bite must check for filth fever as above.

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