I think they should have the ability to summon dragons, basilisks, shapeshifters, and goblins. And shoot lightning-bolts during combat.
"The world, the Gnostics said, is ruled by the great and evil Archon, whose empire stretches as far as the firmament. But, in another universe, there's another Archon. And he wants your empire..."
Maybe that's too obscure for anybody else to remember.
-Max
P.S. Basilisks rock!