For each crafting profession in WoW there are at least a few valuable recipes worth farming or investing in. Not all the players are aware of them though, and many of the players aware of their existance, don’t bother acquiring them.
Two recipes of this sort are the Schematic: Craftsman’s Monocle and Plans: Felsteel Longblade. So, here are two short guides on how to farm them, in case you don’t want to buy them from the Auction House.
Schematic: Craftsman’s Monocle
First of all, this recipe costs maximum 1,500g, and the monocle sells for 1,000-1,500g. So, the recipe it’s worth buying. But, in case you can’t find it in AH, the best way to farm it, is to run Gnomeregan, and kill the final boss – Mekgineer Thermaplugg – until it drops this recipe. Even though this recipe is a world drop, it appears that this boss has a higher chance to drop it.
To get to Gnomeregan, Alliance players should teleport to Ironforge, and from there go West into Gnomeregan, at (31,36). If you play Horde, you will find a portal to this instance, at Grom’gol Base Camp (37,51), in Northern Stranglethorn. For easy farming here, you’ll need a 55+ character.
Once inside the instance, go all the way down to Tinker’s Court, defeat the boss, leave the instance, reset, and repeat. Here’s a map with your route inside Gnomeregan, down to the final boss and out.
Now, for me this Engineering recipe dropped after 42 runs. Even though one boss run, playing a Rogue with Burst of Speed, takes about 4 minutes, 42 runs it’s still a lot of time spent. That’s why it’s worth to pay for it, rather than to farm it. However, you may still get lucky and obtain it after only a couple of runs. Also, this boss drops other Engineering schematics for pets, such as Schematic: Pet Bombling, or Schematic: Mechanical Squirrel.
Plans: Felsteel Longblade
These Blacksmithing plans are world drop, and can be obtained basically from any mob in Outland. That’s why the recipe is rare. However, for higher drop chances, and for higher concentrations of mobs, it’s a good idea to farm it inside Black Temple, or inside the instances at Auchindoun. Mine dropped from Cabal orc, in Grandmaster Vorpil’s room, inside the Shadow Labyrinth. I can’t tell exactly which mob was it because I area-looted a huge pack of them and I just saw the recipe among the other stuff looted. For easy farming in Black Temple, you’ll need a 90+ character.
Of course, the recipe is BoP, but since it’s quite a rare sight on most servers, it’s price is typically 20,000-30,000g. So, you might as well sell it, if you find it, or learn it on your blacksmith, for profits. Felsteel Longblade makes quite a good-looking piece of transmog, and it sells for 4-5,000g, depending on server.
Although most reliable online sources say both these recipes are world drop, and can drop for a character that doesn’t have the corresponding profession, I personally am not 100% sure about this. For me, the Schematic: Craftsman’s Monocle dropped on my Rogue-Engineer, and the Plans: Felsteel Longblade dropped on my Warrior-Blacksmith. Therefore, I think it’s a good idea to farm each one of them with a character with the apposite profession, just to be sure. Also, chances to get it might be higher.