"Follow me to the land where the greatest threat of the Genesis alliance has fled. Follow me to the land where the undead form naturally. Where death and life have fallen in to war with one another. An ancient city left in ruins by the evil that once lived there." Ignus roared out this small speech.
He had done exactly as needed. He had gathered na sarmy. Prepared those that ended to be brought together. He had even gathered all the elder dragons under this lead so that they could bring all the soldiers that came together for this fight at the same time.
The reason he had gone to such lengths was simple. He had been asked to lead this battle because he was able to burn away the undead entirely. The light could purify the land and the undead, but his flames were strong enough to handle the majority of undead regardless of their affinities or strengths.
Creation is hard, cheer me up!