Any builds that work well without the 10sec charges?

It seems like every char I have has endurance charges or frenzy or power charges, especially end charges seem like a neccesity in merc mode. So I am just curious are there any builds out there that can do map farming without using any of the 10sec buffs (molten shell and end/frenzy/power charges). I dont mind casting curses to much and auras while sometimes annoying (40% ones im looking at you) are ok but I cannot stand having to cast enduring cry every 10-14secs(depending on skill/nodes). They make it feel like I need to rush from pack to pack to keep my buff on since all of the charges fall off at once. I like to take my time, look at whats dropped, id rares, maybe move stuff around in my inventory, wait for my health or energy to recharge.. basically just take it easy and I dont feel like you can really do that to much if you want to keep your charges up