Wootz Cuirass ★★★★

Taken all the way down to base materials, one Wootz Cuirass is 3 crafting steps deep and needs 6 intermediates — Wootz Ingot ×5, Darksteel Rings ×1, Hippogryph Leather ×1 and 3 others — which resolve to 9 distinct raw materials totalling 21 units, plus 39 crystals.

That bill outweighs 8,152 of the 13,602 recipes tracked here and 780 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 35 are burned by the intermediates, so the real crystal cost is 13 Earth Cluster, 11 Fire Cluster, 4 Ice Cluster and 4 other kinds.

The chain crosses four disciplines — Armorer to Lv 50, Blacksmith to Lv 50, Goldsmith to Lv 50 and Leatherworker to Lv 50 — so no single class can finish it unaided.

5 of the 9 raw materials come out of the ground, and 3 of them are time-gated: Darksteel Ore (1:00), Ferberite (3:00) and 1 other. The widest gap between consecutive opening times is 21 Eorzean hours, about 61 real-world minutes.

Of the intermediates, Hippogryph Leather has the widest use: 131 recipes call for it, spanning seven of the eight crafting classes.