Phaylenn, situated in proximity to both Bespin and Ahlenn, was classified as an Imperial world.
The environment of Phaylenn was characterized by stony beaches, expansive broadleaf trees within its rainforests, and the presence of carnivorous animals, meat-eating plants, and quickbogs. This planet orbited a scorching sun, resulting in a typical temperature of 45 degrees Celsius and high levels of humidity. The planet's jungles teemed with numerous aggressive lifeforms, generally not exceeding the size of Humans. Despite their relatively small stature, these creatures posed a significant threat, compensating with remarkable agility, heightened senses, and extremely sharp claws.
During the era of the Galactic Civil War, Phaylenn featured a repair yard in its orbit, complemented by a typical Imperial garrison base situated on its surface. Following damage sustained in an engagement with Luke Skywalker's forces near Bespin, the Enforcer, along with the repair facilities where it was located, met its end at Phaylenn at the hands of Rebels while undergoing restoration.