About Karazhan

Copied from Amping's excellent guide on the WoW-forums:

Karazhan will most likely be the first raid your guild enters. It’s important not to think of this instance as a 10 man UBRS run, it’s very challenging and takes a great deal of organization to complete.

There are 12 boss encounters and the breakdown is such:

5 Boss encounters will require off tanks (2 optional)
2 Boss encounters will require AoE
1 Boss encounters will require crowd control
2 Boss encounters will have bosses without agro management
4 Boss encounters require heightened awareness from your players.

The challenge factor heavily increases as you move through the dungeon. The first few fights are relatively non-dynamic and have been labeled as gear checks. Progressing through the dungeon the boss encounters require more awareness from your players and can pose problems for lesser groups.

The dungeon is very, very large and has many optional paths. In fact, the majority of the bosses are optional so if a guild were so inclined they could run through a handful of bosses to reach the final boss of the dungeon rather then killing each individual boss. This can make gearing up guilds a little quicker since you can skip the bosses that don’t drop loot for the classes in the raid.

Currently we know that at least two pieces of tier 4 comes out of Karazhan. However we also know that 8 pieces of loot are in the tier 4 set (the models are in the game and you’ve seen the videos of characters with tier 4 boots and belts on). However there are no set bonuses for the other 3 missing pieces in the game. Which leads us to believe that the belt, boots and bracers have not yet been added into the drop tables of the game. It’s a possible assumption that the three harder optional bosses, Nethersprite, Shade of Aran and Illhoof may drop these three pieces of loot when they are added.

The final encounter is a boss called Nightbane (undead dragon) that can only be summoned after defeating Prince Malchezaar. Nightbane is a vastly harder challenge then any of the bosses in the dungeon and though there may be groups that defeated this encounter in beta, I’ve yet to see a video of it. A piece of Tier 5 perhaps (like Ragnaros)? Who knows… what we do know is he has multiple phases, hits like a truck and in addition to being a skill check, he is also a massive gear check. The dynamic of the fight is a blend of Onyxia and Nefarian with AoE fears and undead constructs.

Below are links to AmpWoW’s boss strategy section where there is a considerable amount of info on each boss’s strategy, skills and dynamics.

Karazhan Boss Strat Page

Individual Boss Strats

Attumen
Wizard of Oz
Maiden of Virtue
Moroes
Nethersprite
Prince Malchezaar
Aran
Terestian Illhoof
Big Bad Wolf
Curator

For other boss strategies, you can find them here