They had accounted for everything. They had accounted for a number of the changelings to attack the dragon while others flew to the palace to protect their lieges. They had accounted for the changelings to take up formations and seek to make an impenetrable wall between the palace and the great undead dragon. They had even, at worst, expected them to charge the dragon en masse, which would require a rather large degree of effort on the part of Chrysalis and Crimson to defend themselves. Between the dragon as an animate shield and Crimson's powerful magic, however, they might do enough damage to dissuade the majority of them.