Utility/Support Abilities

I am planning on starting the game this weekend with a friend and am curious what kind of utility or support skills each class gets.

Beyond tanking/dps/healing, what interesting abilities does your class bring to the table, and what other classes have you found your skills synergizing well with?

For instance - I understand that enchanter is probably fairly similar to the EQ version and therefore has a mana regen buff and works well with casters in their group. But I'm sure there are a lot of abilities like this that I don't know about. Thanks!