: Soulblighter (Damas/Anshar), Twice Born/Patron of the
: Hanged
: The Deceiver (Myrdred), Source of the 500 Poisons
: Shiver/The Voiceless One (Culwyeh/Ravanna), Loveless
: Child of the Unwed Dawn
: The Watcher (Bahl'al), Mad Goat of the Fens
: The Lurker (Bheil), Bonesplitter, Twice-Born Daughter of
: Flood and Famine
: The Faceless Man (???), ???
: I think Shiver wins the award for most names
Oh, wait... Soulblighter is tied with her. They'be both got five names. The Lurker has four, the Watcher and the Deceiver three, and the Faceless Man one. Seems nobody in Myth but the TRO have normal two-name names (though they don't really have NORMAL names; things like "Iron Fire" and "Blunt Strike", in Latin).
Also, if the Deceiver has the Confinement Dream, and probably used it on the Watcher, then that would explain their rivalry; it would also explain how he got the Watcher's arm out of it's prison in the Cloudspine. Though it makes me wonder, if Balor was in control of the Deceiver, why did he have to free the Watcher by himself - and even then not completely - instead of just making the Deceiver undo the spell? Maybe he didn't have the Deceiver under his control yet.