Common ProblemsI can't click on the ore vein that the Brimstone Destroyer drops to click it
You must have learned the Infernal Brimstone mining technique to mine the Infernal Destroyer Core. The technique is learned by completing the quest Infernal Brimstone Sample. Once you have learned the technique, the quest Brimstone Destroyer can only be completed once a day and cannot be completed in a raid group. It also cannot be completed while a zone is under a Demon Invasion.