Christ, this went out of control fast... Alright, before anyone else posts it's my and Hero's turn. Don't normally do posting orders, but still.
Not sure how summoning Visionary will kill everyone perse... remember, the candidates are only that; teenage students barely out of training. Even though they are way above the average soldier, they're not all powerful. Besides, starter GFs are weak as shit to begin with, as per the game.