Empowering would be very good option if i didn't have spectres reseached yet. I really need the astral gems for other stuff and i really dislike alchemizing (i have no idea how i should write that word =P ) gems. There is no useless gems in dominions
. If i get spectre whit wrong randoms that means i just got one more dark knowledge caster...
Flying is very good idea. I think i will give some winged shoes to the spectres. I guess 2-3 of this dudes should be plenty enough.
To thejeff: thanks for the tip. The problem is i am playing heads up