Team Build basics thread.

I thought perhaps it would be a good idea if we got a sticky thread similar to the specific class threads in this forum with the topic instead being team builds. Maybe not something discussing every single skill (though that would certainly be welcome as well) but at least discussing in general what classes to have and what purpose each class should have.

I myself am probably a poor source of such knowledge but I think a lot of others would also like to see such things discussed here or on the website in general. It seems to me that it would be of good use for GvG and even tombs where a team build seems to really trump against a team of 8 people with individual builds that just got thrown together based on their classes.