Well, that’s some unfortunate timing. That said, we have three options. The first: Take distracts the Nephilim while Malphiel carries Saffiel away; the Nephilim will vanish if we get out of the encampment. The second: we fight the Nephilim here. The third: we sacrifice Saffiel and run.
My vote is for the first option. Take, as the Chosen, should take priority as long as she baits it with some Force Lances. Save mana for Cloak, and take advantage of your ability to evade it long enough to get away from the encampment.
That said, in case others vote to fight, I’ll add that Malphiel should equip the helmet and gauntlets, Take should use Force Lance, the kunai, and her weapons, and Saffiel should support with healing magic if she can. The Nephilim is immune to angelic magic, so there’s no point in either of our angels using their offensive magic.