Facet Mail of Fending ★★

Taken all the way down to base materials, one Facet Mail of Fending is 2 crafting steps deep and needs 5 intermediates — Grade 2 Vitality Alkahest ×2, Tungsten Steel Ingot ×2, Deepgold Nugget ×1 and 2 others — which resolve to 11 distinct raw materials totalling 35 units, plus 30 crystals.

That bill outweighs 11,223 of the 13,602 recipes tracked here and 1,179 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 6 Earth Cluster, 6 Fire Cluster, 6 Fire Crystal and 4 other kinds.

The chain crosses five disciplines — Armorer to Lv 80, Alchemist to Lv 80, Blacksmith to Lv 80, Goldsmith to Lv 80 and Weaver to Lv 80 — so no single class can finish it unaided.

6 of the 11 raw materials come out of the ground, and 3 of them are time-gated: Ethereal Cocoon (8:00, 20:00), Prismstone (4:00, 16:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Tungsten Steel Ingot has the widest use: 113 recipes call for it, spanning six of the eight crafting classes.