I'm not sure exactly what you mean in the way of exploit here...
I play a LM. I carry multiple staffs and books. I have them with different stats/legacies and damage types. I change them out depending on what I'm fighting. Orcs get one staff-set, the Dead get another.
There are some items that when you activate them give you a bonus. Mostly I forget to activate them, so while i have them, I rarely remember to use them "in time of need".
I don't really use much more than 1 set now. I'm under-level and under-geared and under-traited for anything remotely interesting/challenging and I long ago dropped off the list of "eligible" for anything on the elite side of things.
I have heard of "exploits" in the past re something burglars did in the moors but I really don't know what it was they were doing.
Whoever says “I” creates the “you.” Such is the trap of every conscience. The “I” signifies both solitude and rejection of solitude. Words name things and then replace them. Whoever says tomorrow, denies it. Tomorrow exists only for him who does not seek it. And yesterday? Yesterday is Kolvillàg: a name to forget, a word already forgotten.
The Oath: A Novel by Elie Wiesel