Grade 4 Skybuilders' Leather Sack

Taken all the way down to base materials, one Grade 4 Skybuilders' Leather Sack is 2 crafting steps deep and needs 1 intermediate — Ramie Thread ×2 — which resolves to 5 distinct raw materials totalling 20 units, plus 8 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 1,025 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 2 are burned by the intermediates, so the real crystal cost is 4 Earth Crystal, 2 Lightning Crystal and 2 Wind Crystal.

The chain crosses two disciplines — Leatherworker to Lv 60 and Weaver to Lv 54 — so no single class can finish it unaided.

2 of the 5 raw materials match a gathering node, none of them timed; the other 3 come from vendors, drops or content this site does not track.

Of the intermediates, Ramie Thread has the widest use: 85 recipes call for it, spanning three of the eight crafting classes.