Does a spell duplicated by Shadow conjuration / Shades have the descriptors of the duplicated spell.
For example if I use shades to summon a devil does the spell have the [evil] and [lawful] descriptors?
I would say yes only because you get really funny situations otherwise such as Shadow Conjuration to create a copy of Stinking Cloud, and it wouldn't have Poison descriptors.
Otherwise this gets even more confusing with Shadow Transmutation (Blood of Shadows IIRC) and Shadow Enchantment (Removing Compulsion or Charm tags!?); so I would keep the descriptors, but they still remain Illusion spells for the purposes of DCs and such.
I asked this before in the context of Shadow Enchantment and the Psychic phrenic amplification Overpowering Mind that gives DC bonuses to mind affecting spells. The consensus was that it does take the imitated spell's tags, and that applies to both saves, not just the "real" save after the disbelief.