Went down here with my 76 Necro on Saturday night, 1/5/13.
I was mainly looking for Trakanon, but he wasn't up, so I went back to the beginning of the zone to mess around killing frogs and scarabs.
I really don't know the zone *too* well and even then, it's been about 10 yrs since I was here in any regular frequency.
I kept killing swarms of (mostly) frogs, eventually making my way down to the "chef" area (big room w/ long table).
I went up the stairs and killed a couple frogs on the balcony.
I then went back and around the corner and ran into a Froglok Armsman.
I wonder what he drops? I thought.
Killed him and looted "Truncheon of Doom".
Looking at posts, it seems like this is a very rare drop. I guess I just got lucky?
For the record, he was NOT wielding anything during the fight, so you will not know if he has it until you loot him.