Katana of the Goddess ★★★

Taken all the way down to base materials, one Katana of the Goddess is 2 crafting steps deep and needs 3 intermediates — High Mythrite Ingot ×3, Eikon Iron Ingot ×2 and Cloud Mica Whetstone ×1 — which resolve to 9 distinct raw materials totalling 46 units, plus 35 crystals.

That bill outweighs 12,540 of the 13,602 recipes tracked here and 1,675 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 30 are burned by the intermediates, so the real crystal cost is 16 Fire Cluster, 8 Earth Cluster, 6 Wind Cluster and 1 other kind.

The chain crosses two disciplines — Blacksmith to Lv 60 and Goldsmith to Lv 60 — so no single class can finish it unaided.

5 of the 9 raw materials come out of the ground, and 2 of them are time-gated: Lumythrite Ore (2:00, 14:00) and Smithsonite Ore (8:00, 20:00). The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, High Mythrite Ingot has the widest use: 150 recipes call for it, spanning seven of the eight crafting classes.