Welcome to a wonderfully compact and highly rewarding instance!
The amazing thing about this instance is that the harder you work, the greater the reward!
The Obsidian Sanctum, also called the Chamber of Aspects, is located beneath Wyrmrest Temple in Dragonblight. It contains a large raid dragon "Sartharion the Onyx Guardian" and his three lieutenant drakes... plus some small groups of trash mobs.
Each mini-drake boss has specific debuffs and added mechanics such as continually spawning adds etc. The details are well documented in multiple locations like: Wrath's Obsidian Sanctum... and all of your favorite WOW informative webpages.
My guild has easily blown through the individual drake fights dragging along all of our raiders to familiarize them all with the different drake fights and to gear up with some minor loot. We then decided to tackle the "Sartharion plus TWO drakes fight". (Our raid leader has ultimate confidence in our abilities, and so we skipped the more simple Sarth plus One drake fight). Sure enough, we got it down in just 3-4 attempts.. Our raid day was cut short that week. The Following week, of course, we started some intense work on the final and most difficult encounter that the Obsidian Sanctum offers.. Sartharion plus ALL THREE drake lieutenants. (I'm sure we could pull the whole instance to make it even more difficult, but that would just be an instant wipe and insanity if we didn't clear out all of the roaming trash in the chamber).
After much difficult work, and practice dodging waves of fire-lava, and keeping agro on all of the spawning whelps and lava elementals, we learned that our most difficult challenge would be a crunch time where our Death Knight main tank would take extremely large hits that could potentially one shot him... After numerous hours of attempts and several repair bills later for all 25 members... we got over that hump, and it was mostly downhill from there... though I died while tanking Sartharion as the second round tank... I was then raised... I thought I was ressurected normally, but noticed I couldn't move and only had access to that crazy Zombie pet bar.... so I Exploded offering my small bit of dps on Sartharion and was then ressurected normally.. Unfortunately, I got disoriented from the rez, and ran the far way when a fire wave came and died again... :P BUT I got off my all important and life saving Innervate on one of our top priest healers, and the raid pulled off the final kill...
Yeah yeah.. I'm sure you've read a dozen "We did it!" stories on wow blogs... but this particular kill was important for us because it was a server first kill, and the 25 of us were the only ones who could sport our brand new titles.... till Limbo feels like killing it in the near future.
Until this time, Limbo has been always just a small step ahead of us getting all of the server first kills. Their dedication is commendable and has been a small nudge for our raiders to always do their best. Perhaps because our guild has always been riding on their furry little tail, they have been more dedicated and motivated than they might have been if we didn't exist on the server.. Either way, Limbo is an excellent companion guild to have, and we have worked with them on multiple occasions regarding swaping useful classes or gear or crafting items... and the friendly competition just adds some excitement...
If your guild is working on multiple drake + Sartharion pulls, Keep working at it! It's really an exciting accomplishment! Eventhough I wasn't thrilled about my personal job of swiping every single add and trying to keep agro on them all with all of the horrible lag and fps that my sadly out-of-date computer compromises me with.. I kept my focus to do my best as all good raiders do, and trusted my excellent raid leader to guide us through as he always does.. We all love and admire Sirloin!! I'm sure he ranks well up in the top 10 best raid leaders in all of the World!..of warcraft. *smile*