These things on my server (luclin) seem to drop a lot of boots. Dropped 2 shaman boots in a row once and another shaman boots on a different raid. <shrug>
One thing to note, I've killed more of these guys than I can count and just to note they never drop chest pieces and almost always drop arm pieces, but as you guys have mentioned they do drop some of the other slots, but it's mostly arms. Someone told me they got a blighted robe outta one once, but I'm not too sure if I believe that.
These guys are awesome, they can drop armor pieces that actually in plane of hate now, such as Imbrued Platemail and Indicolite. Which means if you're the only shaman here while all other shamans are busy farming PoH, you get monopoly. It is also common for them to drop two pieces of armor at times, seen shaman legs and SK arms drop off a single Phobo once. And two pairs of warrior gloves drop off another.
No Cabolt and Sherkinne are the best. Sherkinne over cobalt, chestpiece is 75ac 4 stones and + 10 all stats. Very rare Velium Totem Raptor drop in Velious... lvl 75 mob... can you say lunchmeat??
A few things to add to Necew's post... They drop random armor that is found in both PoF and PoH. These mobs are also a buffers nightmare as they ae dispell now, so don't buff to much before pulling these.
-Korelin Dorlomin Level 50 Warrior of Halas Cazic Thule - Shadowed Souls