Level a profession

Steps

1–30Craft ~29× Rough Dynamiteearns 7silver83copperafter selling for 41silver18copper

recipe →each: 1× Rough Blasting Powder, 1× Linen Cloth

30–55Craft ~31× Handful of Copper Boltsearns 19silver22copperafter selling for 29silver45copper

recipe →each: 1× Copper Bar

55–65Craft ~10× Arclight Spannercosts 5silver40copperafter selling for 14silver40copper

recipe →each: 6× Copper Bar

65–103Craft ~58× Copper Tubecosts 26silver68copperafter selling for 69silver60copper

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

103–107Craft ~5× Large Copper Bombcosts 9silver35copperafter selling for 8silver75copper

recipe →each: 3× Copper Bar, 4× Coarse Blasting Powder, 1× Silver Contact

107–110Craft ~3× Small Seaforium Chargecosts 5silver79copperafter selling for 4silver50copper

recipe →each: 2× Coarse Blasting Powder, 1× Copper Modulator, 1× Light Leather, 1× Refreshing Spring Water (vendor)buy Schematic: Small Seaforium Charge first: 23silver

110–128Craft ~19× Heavy Blasting Powderearns 1silver9copperafter selling for 57silver90copper

recipe →each: 1× Heavy Stone

128–130Craft ~2× Flying Tiger Gogglescosts 3silver44copperafter selling for 8silver16copper

recipe →each: 6× Light Leather, 2× Tigerseye

130–146Craft ~16× Bronze Frameworkearns 61silver20copperafter selling for 1gold38silver

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

146–170Craft ~32× Gold Power Coreearns 28silver80copperafter selling for 2gold40silver

recipe →each: 1× Gold Bar

170–195Craft ~191× Bronze Frameworkearns 2gold71silver20copperafter selling for 11gold88silver

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

195–200Craft ~7× Big Iron Bombcosts 1gold42silver17copperafter selling for 1gold5silver

recipe →each: 3× Iron Bar, 3× Heavy Blasting Powder, 1× Silver Contact

200–226Craft ~42× Large Seaforium Chargecosts 7gold16silver10copperafter selling for 3gold78silver

recipe →each: 2× Solid Blasting Powder, 2× Heavy Leather, 1× Refreshing Spring Water (vendor)needs Schematic: Large Seaforium Charge (not on the AH right now: from a vendor or drop)

226–230Craft ~8× Hi-Impact Mithril Slugscosts 2gold28silverafter selling for 32silver

recipe →each: 1× Mithril Bar, 1× Solid Blasting Powder

230–285Craft ~187× Mithril Gyro-Shotcosts 102gold85silverafter selling for 18gold70silver

recipe →each: 2× Mithril Bar, 2× Solid Blasting Powder

Skill 285–300: 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

382× Mithril Bar85gold95silver

466× Solid Blasting Powder46gold60silver

414× Bronze Bar7gold45silver20copper

84× Heavy Leather2gold43silver60copper

32× Gold Bar2gold11silver20copper

207× Wool Cloth1gold44silver90copper

21× Iron Bar1gold42silver80copper

207× Medium Leather1gold3silver50copper

21× Heavy Blasting Powder98silver28copper

222× Copper Bar73silver26copper

58× Weak Fluxvendor58silver

19× Heavy Stone56silver81copper

29× Rough Blasting Powder28silver13copper

26× Coarse Blasting Powder11silver44copper

45× Refreshing Spring Watervendor11silver25copper

12× Silver Contact10silver44copper

4× Tigerseye8silver60copper

3× Copper Modulator6silver15copper

29× Linen Cloth5silver22copper

15× Light Leather3silver75copper

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.