The Auction House (AH) is a brilliant way of making money if you know the tricks on how to do it. The basic strategy with the AH is to buy things cheap, re-list them on the AH, and then sell them for a profit. Even better, of course, is to get good items from drops and then sell them on the Auction House for pure profit. Many players generate most or all of their cashflow simply by speculating on the AH. So a good understanding of the it, as well as some time to invest, is essential to turning it into a money-making proposition for you. It is also highly recommended that you get the Auctioneer addon for quick listing auctions, and knowing the average price of items. Another great addon that can assist you in flipping items for profit on the Auction House is Tycoon. This addon analyzes items on the Auction House such as cloth, ore, and even TCG mounts. Once the information is recorded, Tycoon will inform you of the most profitable items possible, and exactly how much you can make by either farming them, or buying them at their current price and then relisting them.
The old popular example was the http://www.wowhead.com/item=47257. This item differed on my server from a high of 6k to a low of about 3k. When the price was down at 3k, I would buy a few of these and just wait a week. Throughout the week, I would put in trade and the auction house that I wanted 6k for it. I would then immediately go onto an alt and say that I only wanted 5200g. Sometimes, I would get the 5200g and be a very happy man, other times it would take more patience. However, almost always, by the end of the week, the other sellers had reposted for around what I wanted. This gave me a huge advantage. Now, the price ceiling was no longer 3k on the auction house, but 5k. I could now easily sell the few I bought for 4 or 4.5k, which is a huge 50% profit from the 3k I originally invested.
It surprises me how this farm was not made public until Legion. It literally slipped through our sights all throughout WOD, where admittedly it would of been a GREAT replacement for the infinite embersilk spot that was quickly nerfed. Anyway, this volatile fire spot takes place in twilight highlands in the humboldt conflagration area – which is a small fire bed with about 20-30 elementals roaming around. Each time you kill you have a chance to recieve volatile fire which is worth 50 – 100g per drop. However, according to my test, the volatile fire has a higher drop chance than the volatile water. I believe this has to do with the popularity of the volatile water farm in WOD, it's popularity may have of gotten it stealth nerfed. Sad to say, but this spot is slightly better in my opinion. REMEMBER to use a potion of treasure finding.
**Players can repeat the Battle for Azeroth trial experience with up to 12 characters per qualifying account during the welcome back weekend. The Battle for Azeroth trial experience ends after three hours of game play in Battle for Azeroth, or after the quest "We Need Each Other" (for Horde) or "A Nation Divided" (for Alliance), whichever comes first.