Under the direct command of the Ten Dons, every beast had their own unique code name that derives from the animal that inspired them to develop their Nen abilities. Each beast was chosen by their Don and assigned to the team to carry out the group's orders.[1] The group ceased to exist after the Phantom Troupe killed them all out without mercy over the course of a single night,[2] with the exception of Owl who was taken to be interrogated and whose ability Chrollo stole.[3][4]
Plot[]
Yorknew City arc[]
After a large number of Mafia members and auction clients in Yorknew City are massacred by the Phantom Troupe, the Ten Dons quickly dispatch the Shadow Beasts to deal with them, not knowing who they are.[1]Uvogin faces four of them by himself,[5] and quickly defeats them.[6] Besides Owl, the remaining Shadow Beasts are subsequently killed,[2] causing the Ten Dons to place bounties on the Spiders' heads[7] and to hire professional assassins to eliminate them.[8][9]Illumi later kills the Ten Dons and controls their corpses to restart the Underground Auction[10] and cancel the bounties on the Troupe.[11]