Elemental Seaforium Charge

Clarification, it opens every lock that would require a Lockpicking skill of 350 or less. Or, in other words, it works on every non-Northrend lock.

With engineering being a rarely used profession it seems that engineers Revered with the Consortium are even less common.

Fortunately it seems that the recipe is BoP but the actual charges are not. You can buy a bunch from a friend and use them.

Materials are very check compared to the other versions. All mats are actually available from the engineering vendor in Area 52.

Known to open even khorium lockboxes (although one has to weigh in the cost of making these vis a vis the cost of getting a rogue to open the lockboxes -- if you got a friend rogue the better)

Also opens the door in Shattered halls (bypassing the toxic monsters part if you don't have a rogue with your group), before going to the warlock boss.