take out pallis and put in sukuha and charlotte if you can. for this subjugation it's highly recommended to go with a more melee-focused team as well as magic damage. I suggest you take a look at some of the 500 kill runs; many of them will run around 6 melees with 4 ranged. normal mages dont have good enough range. here's sennen war: https://www.youtube.com/watch?v=jWv8b5yYvVY

and some random guy: https://www.youtube.com/watch?v=FFXK4WM5luE

and of course, this from the random video guide sharing thread: http://www.nicovideo.jp/watch/sm29071519