Thanks to a tip from a guildmate. Ruins of Lxanvom (Crypt of Decay) was a good ore farming spot. Mainly the Pulsings and Bubonians dropped them. It was the primary ore that dropped along with an occassional sunshard ore, iridium ore, and bricks of ethereal energy.
They may have nerfed the drop rate with the April 17 patch or stealthed it with the April 18 maintenance.
Before the patch I was getting a Rhenium Ore (sometimes 2) of of almost every Guardian of Marr. Logged in this morning and have gotten only 6 of them in 30-40 kills. Also, Bonded Loam was about 1 for every 3 Rhenium and today I haven't even seen 1.
Anyone found a good place to consistently farm this? I was in Sebilis trying it out, thinking it would be a good spot - and got about 5 in an hour, about 30 rubicite though - so if your looking for that I'd try seb, at 75 I was just pulling trains and plowing through
Various mobs, mostly the constuct types, drop rhenium ore in RCoD. I found tackling a mob and two adds to be a bit much with my 75 mage, but could generally kill one off before having to zone, so it still worked ok. Was much easier, if a little slower, to use Drifting Fog to get singles, then root rot with my 75 ranger. I meleed a few, but found mob DPS a bit high for comfort. Next time I go I'll try to remember to have the profile updater going to confirm which mobs drop. I think I had five or ten dop in an hour there, and would like to find somewhere with quicker drops. Has anyone tried deep in The Hole? I might have to go give that a shot, as I think the mobs drop quite a bit faster and have lower DPS so they can just be plowed.
I've been trying to get a chance to go try the statues in Stillmoon Temple for a good Rhenium farm spot. If anyone tries it can you confirm if the statues in Stillmoon drop the Rhenium ore?
Humanoids have a chance to drop any of the new components. Think constructs and elementals will drop these more often. But I can't say for sure where the largest consistancy is. More then likely the levels of the mobs will play the largest part in the ore you get(65+?). On the combine server I could only think of maybe the taskfiends in MPG or elementals in Paw. This is all theory, I haven't done either camps yet. Humanoids are so annoying. I can't imagine farming Rhenium Ore components from them. I think Seb Juggs might be a good source for the Cobalt ones. Witherans in DoDh are elmental. Keep us updated and see what we can find out.