The Karazhan Guide Pt2 - Moroes

Moroes (or "Moron" as we know him) is the second boss in Karazhan and the first real test of a raid's ability to coordinate. On the way to him, you'll come across a lot of non-elite mobs that you can AoE and win some friends amongst your Mages and Warlocks over. Be ever alert though, because there's a bunch of hard-hitting elites that patrol amongst the groups.

Once you've cleared the Dining Room you can decide what to do about Moroes. He will always have four adds with him from a potential pool of six, each with a different class and abilties.

All the adds are Undead and are as a result vulnerable to Shackle Undead from Priests and Turn Undead from Paladins. I wouldn't reccomend using Turn Undead much though, since I've seen it occasionally cause an add to run out of the dining room and reset the encounter. They're also vulnerable to Hunter traps, so keeping one chain trapped with a decent Hunter is also an option.

The Adds

Baroness Dorothea Millstipe - Shadow Priest: Her Mana Burn is nasty, and she needs to be killed first. She doesn't have much health and does next to no melee damage, so any Meleer could tank her.
Lady Keira Berrybuck - Holy Paladin: She casts Blessing of Might on Moroes, Heals adds and cleanses shackles. Kill her asap, but she also doesn't hit hard, so once again you can have any meleeer tank her.
Lady Catriona Von'Indi - Holy Priest: Her Dispel Magic and Heals will make her annoying, but once again, anyone can tank her, so kill her.

(After any or all of these three adds are down, I tend to reccomend that DPS focus on the boss.)

Baron Rafe Dreuger - Retribution Paladin: He hits hard so will need an actual tank on him. He also stuns and sometimes cleanses. Either chain trap or shackle him and kill him last.
Lord Robin Daris - Arms Warrior: He hits hard and also does an evil whirlwind that will decimate your caster camp. He must be kept CC'd for the entire fight.
Lord Crispin Ference - Protection Warrior: Hits for about 1k damage on plate. I tend to offtank him along with Moroes, and DPS deal with him during Moroes vanishes.

The Boss

The boss is a dirty, smelly Rogue and deserves to die (again) for that! He hits for about 2k on plate, but does so fairly often as a dual-wielder.

He also has two abilities which directly make tanking him an annoyance: Gouge and Blind. He will periodically Gouge the tank, stunning him (and temporarily dropping aggro) for about 5 seconds. He will also periodically Blind the nearest non-tank target to him, confusing them and dropping their aggro. Blind is a poison effect, so a cleanse, cure/abolish poison or a poison-cleansing totem should remove it.

You'll want an "offtank" for this fight (really, any melee DPSer with halfway decent armor/stamina will do.) Before you engage, make the following macro:

/cast [target=focus] Blessing of Sacrifice

And then make your chose "offtank" for the fight your focus. Cast this after you've engaged the boss, and every time you get gouged, the next attack should go to the focus, which will break the gouge via the Blessing of Sacrifice damage. Please make sure your healers know to keep the focus cleansed at all times, because if he's blinded when you're gouged, then Moroes will ignore both of you and likely go for the healers.

The one last wrinkle to point out is that Moroes will periodically vanish and apply a Garotte to a random raid member. This will cause 1k bleed damage to the affected target. Paladin Bubble and Dwarven Stoneform can remove this though.

The Fight

Ok, you've worked out how to handle the adds, you're ready for the bosses tricks, now you have to tank him. From the podium where he starts, I tend to pull the boss with an Avenger's Shield, and then pick up the Prot Warrior (if he's there) with a quick Exorcism. If you're using hunter traps, then don't use Avenger's Shield unless you're sure you'll miss the trap target.

I tend to yank the boss and any other adds I'm tanking up to north end of the dining room, beside where the first pair of Stewards were. This gives me a free space to consecrate to my heart's content. I just build aggro on the boss and renew BoSac on the OT whenever it's low.

Before too long, the DPS should have taken care of the adds that had to die and will join you on hurting the boss. Your DPs needs to be quick on the add handling, because the longer this fight goes on, the more stretched healer mana will become due to Garrottes. Also, at 10 minutes after the pull, he goes Berserk and starts doing massive damage to both the tank and the raid.

At 30% health, he enrages and does a bit more damage, so try to make sure any adds you're offtanking are dead by then.

After he's dead, deal with any CC'd adds and loot him. Huzzah!