Cobalt File

Taken all the way down to base materials, one Cobalt File is 2 crafting steps deep and needs 2 intermediates — Cobalt Ingot ×2 and Raptor Leather ×1 — which resolve to 4 distinct raw materials totalling 8 units, plus 26 crystals.

That bill outweighs 5,254 of the 13,602 recipes tracked here and 529 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 15 are burned by the intermediates, so the real crystal cost is 16 Fire Shard and 10 Earth Shard.

The chain crosses two disciplines — Blacksmith to Lv 45 and Leatherworker to Lv 41 — so no single class can finish it unaided.

3 of the 4 raw materials match a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

Of the intermediates, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.