So many of you may have already heard but there is a new item on the PTR for 7.3. It's the http://ptr.wowhead.com/item=153127/cube-of-discovery. Seems pretty clear this item is meant to be a "catch up" mechanism for lowbies seeing as you can't use it past level 109, it's BoA, and it requires 98. The item gives you a 2 hour buff which gives Legion mobs a 10% chance to drop AP. So there are two questions which must be answered. How do you obtain one of these? And what is the average amount of AP per drop? It's very, very likely this will blow any other AP farming method out of the water. The patch comes out tomorrow and I'll be playing my 110 to try and find out how to get one of these ASAP. But if anyone has any more info on this item that would be great. Update Ok so according to wowhead comments it's the http://www.wowhead.com/item=152922/brittle-krokul-chest that drops the cube. You get this from getting exalted with Argussian Reach and then gaining 10,000 additional reputation. You can get one after that for each 10,000 reputation earned. That means once you're exalted you have a chance to get a cube per 10k rep earned. Hopefully it's a high drop chance. See http://www.wowhead.com/argussian-reach-reputation-guide for details on gaining rep for this faction.