Aurum Regis Rapier

Taken all the way down to base materials, one Aurum Regis Rapier is 3 crafting steps deep and needs 5 intermediates — Adamantite Nugget ×2, Aurum Regis Nugget ×2, Hallowed Chestnut Lumber ×1 and 2 others — which resolve to 7 distinct raw materials totalling 33 units, plus 44 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,755 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 24 Wind Crystal, 15 Fire Crystal and 5 Water Crystal.

The chain crosses four disciplines — Goldsmith to Lv 58, Blacksmith to Lv 58, Alchemist to Lv 56 and Carpenter to Lv 56 — so no single class can finish it unaided.

All 7 raw materials are gathered, and 4 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00), Abalathian Mistletoe (6:00, 18:00) and 2 others. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.