What ballpark range do you need to be to take Shadow Empress down

out of curiousity why do you want to kill her with in 10minutes when you have 30minutes to play with? and I think u have to wait until the timer is less than 10minutes anyway.

But uh whats ur hp and status resisance and if how much "-2sec abnormal status" do u have. as dealing with the pigs stun is the biggest problem. but u could probably mow them down anyway.