Yumizuno

Taken all the way down to base materials, a batch of 3 Yumizuno is 2 crafting steps deep and needs 1 intermediate — Cobalt Ingot ×1 — which resolves to 4 distinct raw materials totalling 5 units, plus 17 crystals.

That bill outweighs 4,201 of the 13,602 recipes tracked here and 564 of the 2,216 Goldsmith ones, and 4,464 recipes nest deeper.

Only 12 of those crystals go into the final step; the other 5 are burned by the intermediates, so the real crystal cost is 11 Fire Shard and 6 Wind Shard.

The chain crosses two disciplines — Goldsmith to Lv 48 and Blacksmith to Lv 42 — 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.