Song of the Fiend ★★★

Taken all the way down to base materials, one Song of the Fiend is 3 crafting steps deep and needs 5 intermediates — Eikon Iron Ingot ×2, Treated Camphorwood Lumber ×2, Eikon Leather ×1 and 2 others — which resolve to 14 distinct raw materials totalling 51 units, plus 39 crystals.

That bill outweighs 12,830 of the 13,602 recipes tracked here and 1,538 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 14 Wind Cluster, 5 Water Cluster, 5 Water Crystal and 4 other kinds.

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

7 of the 14 raw materials come out of the ground, and 3 of them are time-gated: Old-growth Camphorwood Log (8:00, 20:00), 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, Eikon Iron Ingot has the widest use: 140 recipes call for it, spanning seven of the eight crafting classes.