Library - park toons at entrance, kill with swipe as you go. Easy.

Armory - park toons at entrance, kill with swipe as you go, up to the second set of stairs (the last staircase before you reach Herod). After that staircase, your toons are too far away to get exp. Stealth to Herod, pull him and all remaining mobs back to the staircase and kill. Better than pulling the whole instance because less repair bills.

Cath - park toons at entrance, kill with swipe as you go everything outside the Cath. Pull boss and run outside Cath, and kill everything that comes.

Your slaves never have to move, and the only "complication" is the second staircase in the Armory.