Void elf (7.3.5) - "Many have sought to harness the corruptive magic of the Void. Most who tried have fallen into madness. Determined to use this power for the good of Azeroth, Alleria Windrunner is the first mortal to succeed at defying the shadow's whispers. Coming to the aid of a group of her kin who nearly gave in to the darkness, Alleria has vowed to train these Void Elves to control the shadows within them and pledge their newfound powers to the Alliance."
Jewelcrafting also offers players the Prospecting ability; players can break down most Mining ores to find gems used in Jewelcrafting. The Enchantrix addon can calculate the prospecting value of an ore, and when combined with the Auctioneer addon, you can compare the prospect value to the ore's value and determine whether it has a fair chance of producing a profit. For example, on most servers Tin Ore has a significantly higher prospect value than the ore itself, and players can make a tidy profit by prospecting tin from the AH. The low skill needed to prospect tin ore makes this a great profession choice for bank alts!
Any item with a grey name is considered vendor trash or poor quality. White items have some use such as tradeskills, spell reagents or reputation raisers, so you may want to check to see if they're worth more than the vendor price. Keep your eyes out for regular quality weapons, as even the worst of these tend to sell for several silver, or several gold at high level. Always check the tooltip for the vendor price before discarding anything. Also, white (or even grey) shoulder armor under level 20 sells regularly on the auction house, mainly because there is nothing better available at that level.
**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.