Bluespirit Uchigatana

Taken all the way down to base materials, one Bluespirit Uchigatana is 3 crafting steps deep and needs 6 intermediates — Bluespirit Tile ×2, Rose Gold Nugget ×2, Hard Mudstone Whetstone ×1 and 3 others — which resolve to 9 distinct raw materials totalling 30 units, plus 55 crystals.

That bill outweighs 10,368 of the 13,602 recipes tracked here and 1,694 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 13 of those crystals go into the final step; the other 42 are burned by the intermediates, so the real crystal cost is 30 Wind Crystal, 20 Fire Crystal and 5 Wind Shard.

The chain crosses two disciplines — Goldsmith to Lv 74 and Blacksmith to Lv 74 — so no single class can finish it unaided.

All 9 raw materials are gathered, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Rose Gold Nugget has the widest use: 179 recipes call for it, spanning seven of the eight crafting classes.