Dead Hive Katana ★★

Taken all the way down to base materials, one Dead Hive Katana is 3 crafting steps deep and needs 5 intermediates — High Mythrite Ingot ×3, Cloud Mica Whetstone ×1, Eikon Iron Ingot ×1 and 2 others — which resolve to 12 distinct raw materials totalling 46 units, plus 38 crystals.

That bill outweighs 12,540 of the 13,602 recipes tracked here and 1,675 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 13 Fire Cluster, 11 Earth Cluster, 5 Wind Cluster and 3 other kinds.

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

7 of the 12 raw materials come out of the ground, and 3 of them are time-gated: Lumythrite Ore (2:00, 14:00), Smithsonite Ore (8:00, 20:00) and 1 other. 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.