It has been a while since that happened. If memory serves the longest standing boss this expansion was Algalon the Observer, and that fight was not only extremely time consuming to unlock -- it also had a 1 hour time limitation.This jives with the early news we've had about the new Ruby Sanctum instance. It'll come as somewhat of a surprise if the loot from the new boss is really on par with the ilvl 284 gear that can be obtained from The Lich King's heroic version. I suppose it isn't that unreasonable since this instance will probably have to tide over the raiders that do manage to master Icecrown Citadel on heroic difficulty.This seems to reinforce the idea that the new encounter will be similar to how Sartharion was back when the highest tier of raiding was Naxxramas; some high level off-set pieces that aren't absolutely necessary but are well worth the effort.Simply amazing. Paragon (EU-Lightning's Blade) has done what everyone thought was impossible and killed The Lich King on 25 player Heroic. It was widely expected that a Heroic kill would require a few more stacks of the zone-wide buff, but Paragon proved otherwise.They were rewarded with the realm first achievement, Arthas' "Invincible" mount, and the distinction of being the first guild in the world to defeat what is arguably the most challenging raid boss in wow gold history.Apparently there is a realm first achievement, however it doesn't look like there is a corresponding title. I guess the 'Light of the Dawn' title for killing him in the first place is enough! Congrats Paragon!