High Mythrite Cuirass of Fending ★★★

Taken all the way down to base materials, one High Mythrite Cuirass of Fending is 3 crafting steps deep and needs 5 intermediates — Grade 1 Vitality Dissolvent ×3, High Mythrite Ingot ×3, Aurum Regis Nugget ×2 and 2 others — which resolve to 11 distinct raw materials totalling 48 units, plus 43 crystals.

That bill outweighs 12,691 of the 13,602 recipes tracked here and 1,340 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 38 are burned by the intermediates, so the real crystal cost is 11 Earth Cluster, 10 Wind Crystal, 9 Fire Cluster and 5 other kinds.

The chain crosses five disciplines — Armorer to Lv 60, Alchemist to Lv 60, Blacksmith to Lv 60, Leatherworker to Lv 60 and Goldsmith to Lv 58 — so no single class can finish it unaided.

7 of the 11 raw materials come out of the ground, and 4 of them are time-gated: Lumythrite Ore (2:00, 14:00), Wattle Bark (2:00, 14:00) and 2 others. The widest gap between consecutive opening times is 9 Eorzean hours, about 26 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.