Champion Spawn Artifacts lists the new drops for champions
Abscess' Tail
From UOGuide
Abscess's Tail is, as the name implies, the tail of Abscess, the evil, named Hydra that spawns in the Blighted Grove.
It is used for a Quest, given by Callia the guard in Heartwood, called A Tale of Tail. Abscess's Tail has no other known use.
