Level a profession

Steps

1–30Craft ~33× Rough Blasting Powdercosts 31silver68copperafter selling for 1silver32copper

recipe →each: 1× Rough Stone

30–58Craft ~43× Handful of Copper Boltscosts 79silver98copperafter selling for 5silver16copper

recipe →each: 1× Copper Bar

58–65Craft ~7× Arclight Spannercosts 73silver8copperafter selling for 10silver8copper

recipe →each: 6× Copper Bar

65–70Craft ~5× Copper Tubecosts 18silver80copperafter selling for 6silver

recipe →each: 2× Copper Bar, 1× Weak Flux (vendor)

70–75Craft ~5× Coarse Blasting Powdercosts 4silver40copperafter selling for 60copper

recipe →each: 1× Coarse Stone

75–99Craft ~29× Coarse Dynamitecosts 13silver5copperafter selling for 21silver75copper

recipe →each: 3× Coarse Blasting Powder, 1× Linen Cloth

99–100Craft ~1× Bronze Tubecosts 1silverafter selling for 2silver

recipe →each: 2× Bronze Bar, 1× Weak Flux (vendor)

100–130Craft ~30× Small Seaforium Chargecosts 22silver50copperafter selling for 45silver

recipe →each: 2× Coarse Blasting Powder, 1× Copper Modulator, 1× Light Leather, 1× Refreshing Spring Water (vendor)buy Schematic: Small Seaforium Charge first: 4silver

130–195Craft ~240× Bronze Frameworkearns 3gold36silverafter selling for 14gold40silver

recipe →each: 2× Bronze Bar, 1× Medium Leather, 1× Wool Cloth

195–225Craft ~82× Craftsman's Monoclecosts 50gold57silver76copperafter selling for 21gold58silver24copper

recipe →each: 6× Heavy Leather, 2× Citrineneeds Schematic: Craftsman's Monocle (not on the AH right now: from a vendor or drop)

Skill 225–300: no recipe we can price here (its reagents aren't on this auction house right now, or it needs a pattern you can't buy).

Shopping list

Copy for Auctionator

164× Citrine57gold40silver

492× Heavy Leather14gold76silver

482× Bronze Bar4gold82silver

240× Wool Cloth3gold84silver

240× Medium Leather2gold40silver

95× Copper Bar1gold88silver10copper

33× Rough Stone33silver

30× Copper Modulator30silver

29× Linen Cloth26silver10copper

30× Light Leather24silver

147× Coarse Blasting Powder14silver70copper

30× Refreshing Spring Watervendor7silver50copper

6× Weak Fluxvendor6silver

5× Coarse Stone5silver

At every skill point we pick the recipe with the lowest expected cost per skill-up: reagents at today's lowest (or the vendor) minus what the result fetches from a vendor (the safe minimum; the auction house is added for the few the market takes in about two days), divided by the classic skill-up chance (orange always, then falling to zero at grey). Crafts are expected counts, so luck can move them a little. Trainer recipes count as learnable 15 points before they turn yellow (their exact level isn't in the game data). Patterns that bind on pickup are left out; tradeable patterns that aren't listed right now are flagged. Trainer fees and the rank-ups (75, 150, 225) aren't included. Buying hundreds of a reagent will cost more than its lowest price.