Running 5+ auras

with EB and hybrid AR/ES gear my mana pool is nearly 3200 mana after discipline.

I can do a lot of auras (more than gem slots), but since I run a high level arctic armour, I need a high level clarity, which reserves a whole lot of mana by flat cost standard.

without EB, stuff gets tricky. you can uses an alphas howl but its pricey. man reservation nodes help; BM used to help but now its iffy with nerfed life.

I was doing it with some flat ones on life, then reduced mana gem on percentage auras reserving all of my mana, then use BM support gem on active skills. Managed to run anger/wrath/grace/hatred/determination/purity pretty easily without EB or much mana investment.