A belt like the Cord of the Patronizing Practitioner will benefit a mage

Let's use the item that was mentioned in the original question. A belt like the Cord of the Patronizing Practitioner will benefit a mage, a warlock or a priest. It does have spirit on it, and normally that would go straight to a healer.

But don't forget that those DPS classes have talents which convert spirit into an offensive friendly stat. Buying wow gold thought this site right now, and this is you best choice.

When he casts Chains of Woe and everyone gets pulled in, simply defeat the chains while he is casting Skull cracker and then get away.

This includes the tank, as while most tanks with mitigation can take the hit, you will be left with almost no health and if the healer is delayed for any reason you will die.

If your group is mainly melee the quakes can cause issues if they do not clear out, but other than that the fight is simple for most groups. He has a significant amount of health though so expect to take a while defeating him, which leaves more opportunity for someone to forget to clear out.

There always seems to be some type of feud going on, especially when it comes to gear drops. Follow the same rules as outlined above.