Flumph

Flumphs were mysterious and benevolent creatures that drifted through the Underdark. "Trust a flumph."

- X the Mystic's 1 rule of dungeon survival

Description
A flumph's body was shaped like a flat saucer with a diameter slightly larger than a human from shoulder to shoulder, and about as thick as a human arm.

Flumphs floated by means of an innate anti-gravity field, and moved by using air jets as propulsion. In fact, they were named after the characteristic sound made by these jets.

Flumphs also glowed faintly in different colors depending on their mood:

Personality
Flumphs were wise and possessed advanced knowledge of philosophy and other subjects. They fed on psionic energy and were therefore more likely to be found near strong sources, such as aboleth, gith, and mind flayer settlements. However, due to their strong telepathic nature, flumphs were very sensitive to evil thoughts and felt the need to share them as quickly as possible with any good-aligned creatures they found, in order to wash these thoughts away.

It was also common for flumphs exposed to evil thoughts to spontaneously glow red in anger. This reaction was considered a sign to adventurers that evil monsters lurked nearby.

Combat
Normally, a flumph's reaction when facing an evil creature was to flee. However, flumphs' tendrils were acidic and could be used as defensive weapons if necessary. They also had the ability to shoot a sticky, foul-smelling fluid whose odor lasted for several hours.

They were capable of overhearing any telepathic conversation held within a range of, but were immune to attempts at reading their thoughts or their emotions against their will.

Society
Flumph society was organized in harmonious cooperative groups called "cloisters", in which all flumphs contributed according to their own skills. They were also known for sometimes recruiting isolated mindwitnesses into their communities. Once a mindwitness was taken in service of the flumphs, it would change its world view accordingly and was no longer an evil creature.

Flumphs were largely ignored by mind flayers, who had no interest in them. For that reason, it was relatively common to find cloisters of flumphs near mind flayer settlements. On the other hand, githyanki abhorred flumphs violently, and attacked them on sight.

History
The origin of the flumphs was ultimately a mystery. It was speculated that flumphs were genetically related to grells or belabras, due to some physiological similarities such as their hovering and the presence of tentacles. Given the probable genetic ties to the grells, most sages agreed that flumphs originated in a different world and traveled as clandestine passengers in grell spelljammer ships.

During the late 1480s DR, flumphs were greatly disturbed by the demonic madness that permeated the Underdark. Some offered assistance to anyone who opposed the derro cultists under Gracklstugh, while a cloister of flumphs from the Wormwrithings maintained that kindness was the only appropriate response during those evil times.

By the, a cloister of flumphs inhabited the Seadeeps level of Undermountain, feeding off the psionic energy of the nearby illithid and githyanki settlements.

Notable Flumphs

 * Laal, an erudite female flumph who contacted a group of adventurers to seek justice for the murder of her mate, Xol;
 * Xol, an adventurous male flumph who was murdered by the Cult of the Crushing Wave in an expedition to Mulmaster's sewers.

Appearances

 * Adventures
 * Out of the Abyss • Waterdeep: Dungeon of the Mad Mage


 * Waterdeep: Dragon Heist
 * Organized Play & Licensed Adventures
 * Foulness Beneath Mulmaster