[Cohen]

Sadly Mirror Images protect from Area spells (and should not).

Indeed 100% prec 1 single target strikes directly the being ignoring the mirrors, and I believe this is right too because the mage could sense what is living and what is magis ... like a Soul Slay seeks the soul ... an Incinerate will seek a body to set aflame, you cannot do that to a ethereal mirror image.

I've killed with Arco Astrologers both Vanheim (in early game) and Caelum AQs