Group PvP Debuffer.

You'll be so annoying, people will want to burn your family.

2H Staff, Cloth/Plate Armor build.
Plate gives more survivability in general, and higher defense against non-magical, Cloth gives magic perks, and higher defense against magical.

I would say Cloth would make you weak against archers, while Plate would make you weaker against everyone else, especially mages.

Pop off those long CD skills, and sing till your other skills are called for again.