Issaries was found in various places and roles during the Gods' War. He is sometimes found as a conciliator, as when he settle an early argument between Yelm and Orlanth. He was sometimes aiding war, as when he taught Humakt a secret battle language in return for some protection. He was often a mere spectator, as when he saw Orlanth kidnap Huryara (Mist) to be a concubine, or watched Eiritha be buried beneath earth and magic.

When the darkness closed in upon the world Issaries was not panicked, for he had seen the Darkness in his travels. But the march of Death troubled his sensitive, harmonious nature, and he sensed chaos at the end of the trail. He prepared his Spell of Passage and set off to find the light of communication with which to rekindle the world. On his way he met others, and they succeeded in their journey, becoming the Seven Lightbringers.