Wolfirs are former werewolves who no longer suffer from the curse of lycanthropy. Instead, the bestial and human halves of a wolfir are blended together. As a consequence, wolfir cannot shift forms.
Many of the cathars and priests from the area around Gatstaf were called to scour the forests in an attempt to destroy the howlpacks once and for all, and in a wave of fresh anger, the slayers formed a mob. Kolman dubbed it the Gatstaf Hunt and praised all who gathered to track and kill.
Following Avacyn's release, the presence of her holy magic and the presence of a strong clear moon allowed many of the werewolves to control their wolf natures and overcome the change. One by one, the werewolves regressed to their human forms, and some of the assembled slayers saw their loved ones among the monsters.
The Gatstaf Hunt yielded not a single kill. The fight became a reunion and a pilgrimage. The slayers and the lycanthropes came together and walked through the woods to the Gatstaf Grotto, site of an ancient Avacynian shrine. They bathed in the waters of the natural spring and basked in the divine power of the altar. Then together, just before daybreak, they appealed to Avacyn for aid in breaking the lycanthropic curse. And Avacyn appeared to them right there in Gatstaf Grotto.
Avacyn's message was short and simple. She could not break the curse of lycanthropy, she said. The curse mingles the human spirit with the spirit of the wild, and the wild spirit could not be destroyed without also destroying the werewolf 's humanity. So those afflicted with the curse would forever have it. However, Avacyn offered the Gatstaf werewolves a special place at her side. If they promised to serve as guardians of humanity, she would transform their curse, fusing the two warring aspects into a single noble creature, and allowing them to dwell in the light of her blessing. The lycanthropes at the Grotto that day cried for joy and accepted her offer, and she transformed them into the wolfir. In a powerful wave of spells that would become known as the cursemute, Avacyn's magic spread through the plane, transforming not just many werewolves but many of the world's foul curses. The wolfir emerged as a new race of great wolf-creatures dedicated to the principles of the Church of Avacyn.