Valassra:

You have a paladin tank. They are amazing here and TONS of places in northrend. Abuse your aoe undead stun. Here and cos and icc are like paladin eazymode.

With avenger's shield and gluesecrate, your healer should never ever ever ever have aggro. Double check some posts here for tank rotations, and make sure you have your righteous fury and such up on your paladin.

In AN:
All the mobs are undead. So use your aoe stun. Basically every trash pull at the start should go like this:


Avenger's shield, targeting the skirmisher. Honestly just this should be enough aggro to make sure your healer never gets aggro. Run in and drop consecrate. Blast the crap out of the skirmisher. Use your aoe stun. Use your single target stun if you have to as well. Kill the others.

Pull the left group with avenger's shield. Kill the skirmisher, then the caster, use your aoe stun and your single target stun. Kill the main guy - make a line in your dps macro that say /tar web wrap (I think that's it) to free your guys from the wraps.

Wait for the next group. Soon as it starts going towards you, avenger's shield. consecrate, aoe stun, repeat. use IWT to realign your guys if they get messed up from the 'confuse' type thing the guy does.

Third group, same deal.

Boss: keep consecration up, ignore adds, tank, spank, collect loot.