
The WoW Blazing Shadowflame chest is found in the Zaralek Cavern in World of Warcraft, but as it's engulfed in flames, it's not exactly accessible right away. You're greeted with the message "The shadowflame is too strong to bear" when you try to interact with it, and there's nothing nearby that hints at what you need to do.
Unlike the Old Trunk or the Dreamer's Bounty, you will need to go a little further afield to get this chest open. In fact, you'll need to head back several expansions and get your hands on the Onyxia Scale Cloak. With that in mind, here's how to unlock the WoW Blazing Shadowflame chest and where to get the Onyxia Scale Cloak if you don't already have it.