From what I can recall, Aurors are the closest thing that Wizards have to Black Ops/SWAT teams. They are generally well versed in all of their universes schools of magic, meaning they have access to an astounding variety of spells, such as transmuting themselves, others, or even objects into animals, a type of cloaking spell that works somewhat like a Predators cloak, but takes a moment for the spell to completely cover the user, to altering someones memories, to calling forth an object in a certain variable AoE to fly to the users hand, to, well, almost anything one could think. They are also well aware of the need for secrecy, so they should be considered proficient at hiding their powers from any locals.
The one big thing that comes to mind for Aurors is, they should all be considered very proficient at Apparation, which is a lot like DnD's Greater Teleport. It doesn't need and incantation or gesture or even a wand to do, just proper concentration, and they can even "Pull along" one or two people with it if they need to, though anyone pulled along will likely suffer a large amount of disorientation and nausea if not used to the act.