User blog comment:AnonymousAK/Demon's Royale/@comment-25121709-20140715151833/@comment-24800928-20140715173601

1) I don't think bluenote counts. he's part of Grimoire Heart but he is not of the seven kin.

2)I don't think Midnight could twist Franmalth, because when Midnight fought Erza Midnight's magic didn't work on the body it worked on the armor, and also Franmalth uses curses.

3) I think Grimoire hearts has a chance. Meredy could do a three-way link and kill of two of the demons. Ultear would probably find a way to throw (i mean no magic at all by that) her orb strong enough to kill Franmalth (If Natsu can kill him with a rock then heck why not). Capricorn may try to take over some of the oracion seis. Rustyrose's arc of embodiment and Azuma's arc of great tree could kill demons quite well. Heck even kain could probably be able to steel a hair or something and control one of the demons.