With how the Chosen's auras work, you can only twist 2 and hardly 3 because of the 4.5 second cooldowns and 12 second linger. If you hit all of your aura keys at once though, all of them will apply and you can keep twisting them this way. I have all of my auras on my second ability bar and so far I can keep 4 going at all times(I only have 4 so far).