Joacin instructs Warrior of Light on the element of water. During the lessons, a Wood Wailer brings word of an attack by a herd of antelope stags and Joacin orders Warrior of Light to hurry to Josselin's Spire to help the wounded soldiers.
Nolanel, Joacin and Wulfiue are sent to purify a powerful disturbance discovered in South Shroud. Sylphie becomes convinced that the conjuration itself is to blame for inciting nature's wrath. Fearing that the group of Heares are further angering the Twelveswood, Sylphie goes out to try to stop them. To Sylphie's surprise, they receive the help of the elementals to succeed in clearing the massive manifestation of corrupted earth.
Brother Joacin is an ally npc during the conjurer quest Like Mother, Like Daughter.