Crested Headband of Crafting ★★★

Taken all the way down to base materials, one Crested Headband of Crafting is 2 crafting steps deep and needs 3 intermediates — Craftsman's Tri-solution ×3, Rhodochrosite ×3 and Diatryma Felt ×2 — which resolve to 8 distinct raw materials totalling 51 units, plus 54 crystals.

That bill outweighs 12,830 of the 13,602 recipes tracked here and 1,885 of the 1,968 Weaver ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 48 are burned by the intermediates, so the real crystal cost is 18 Lightning Cluster, 18 Wind Cluster, 9 Fire Cluster and 1 other kind.

The chain crosses three disciplines — Weaver to Lv 100, Alchemist to Lv 100 and Goldsmith to Lv 100 — so no single class can finish it unaided.

3 of the 8 raw materials come out of the ground, and 3 of them are time-gated: Cochineal Pigment (6:00, 18:00), Cordia Sap (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Diatryma Felt has the widest use: 50 recipes call for it, spanning six of the eight crafting classes.