No etherealness for me. Unless one of them has blindsight (*sigh*) I'm either magically or physically hidden from just about anything. I can react quicker from the prime. I was wondering, though, can you even go ethereal here? I seem to recall the ethereal plane not being coexistent with the astral (if that's where we are).
Actually, that's a good question. Isida, are we on the (vacant) "planar area" of the Falls, or has it been destroyed, placing us in astral space?
Oh, and a ruling question. May I order animated objects to do assist attacks instead of straight attacks? It seems like a reasonable use of a 6th-level spell.