Once killed it is possible that there will be a chest beneath him. Whether or not the chest is on a timer is unknown, but what can be gathered from the chest would require a long "Time" otherwise.
Last night we killed him and his 2 twin buddies in the zone. The only thing on Cipheron's corpse was this: http://lucy.allakhazam.com/item.html?id=57919
We guess its for one of the 2.0 epics (since this is a tough mob for the 1.5 versions) and gave it to an enchanter on a guess based on the name. He respawned about 30 mins after we had killed him. Considering the respawn, the fact that he's rooted in place, and that the only thing on his corpse was that page. I'm guessing its an epic mob.
This encounter is a pain. Several tricks in his box and an AE u cannot hide if u got agro. We tried to do him 2 times. Hard to land Turgur`s on him, a little harder on Balance of the Nihil. U can nuke him down to 97% but if he reaches 96% he will start to summon ... nasty trick. Further he has a knock back, so get DMF/FOE. His 1500DD/FD AE is partically resistable but only the DD .. FD AE never got resisted of some of us. We took him down to 82% with 28 ppl then we nearly wiped (cleric camped). Rampages very often (i count 5 ramps in 6 sec on worst case). His HP isnt that huge but i dunno if he will get a nother trick out of his box maybe at 60% or less ;)
All/most(very rare occasion where mobs summon at 100% on aggro but I think one of the named in the Ikkinz trials does or something) mobs that summon won't do it till they're dropped below 97%.
My guild attempted him last night for kicks to see how badass he was. Since he's perma rooted, We all stood out of melee and debuffed him and let him FD blur himself. Malos stuck right off. Took several tries to land Malosinia (needed a bard to keep HoS playing). We had a chanter tash him. Then once we had Sinia, Tash and HoS on him and he was blurred, I got my clicky slow stick and took several tries (at least 10) before Turgur's Insects would land. NEver got Balance of the Nihilto stick. Yes, he IS hard to slow, but doable. I'd advise pluggin away at him til he slows.
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Tidykat Leondegrance <Cohort Chalybeius> Cazic-Thule Server 66th Shadowed Prophet
We did wipe. Had about 12 people I think, and only 1 cleric heh. We got him down to im thinking around 80% or so, maybe less, before the tank and deaths ensued. The cleric forgot to stand up after FD hit...
Managed to get hit with his fd, and stayed fd til I lost aggro, invis'd, hit sneak (vah shir innate sneak rocks), and ran behind him and drug corpses.
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Tidykat Leondegrance <Cohort Chalybeius> Cazic-Thule Server 66th Shadowed Prophet
Guild just took a try on him, this is what we've found out so far.
Max Melee: Approx 2200 Melee Range: Pretty small, about the size of his target ring. Rampage: Yes, single target Slowable: Not a chance in hell, resistant ******* Proc: Procs Feign Death with a 1500dd component AE: AE's FD on everyone that has agro on him, regardless of range. Has no actual range to it. AE Timer: Roughly 10 seconds. HPs: Not sure, we were on him several minutes and only got him down to 90% Important Notes: Perma Rooted
If I am correct on this mob, he is the guild mob that guards the main castle entry into the courtyard. He is perma rooted and has massive dps, in the 2k range for each hit. He also procs a FD proc with a range of about 150' - 200'. We backed off him and he left us alone. He did not summon.