 By killing the petrified Archon of Stone, Cairn, either by releasing his power in a pulse that made the land unlivable or by a safer method, the Fatebinder ends the Edict of Stone in the Stone Sea.Once these have been completed, enemy forces attack the Fatebinder's original Spire at Vendrien's Well.In order to defeat the enemy, the Fatebinder channels their new power into the resonator atop the Spire, casting their own Edict without Kyros - implying that Kyros' own power may have originated from the Spires.