[Agema]

I'd be REALLY careful about ethereality.

It makes you kick *** against most basic units. However, magic weapons and attacks make ethereal useless. A unit with ethereal and low protection is likely to be slaughtered by thugs or basic units with magic weapons, or good Evocation spells. It's a nice spell for an astral mage against the right opponent, but equipping an item that grants it instead of decent armour is generally not a good idea.