Wyvernskin Mask of Casting

Taken all the way down to base materials, one Wyvernskin Mask of Casting is 3 crafting steps deep and needs 3 intermediates — Wyvern Leather ×2, Mythrite Ingot ×1 and Mythrite Nugget ×1 — which resolve to 6 distinct raw materials totalling 20 units, plus 19 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 1,025 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 7 of those crystals go into the final step; the other 12 are burned by the intermediates, so the real crystal cost is 10 Earth Crystal, 6 Fire Crystal and 3 Wind Crystal.

The chain crosses two disciplines — Leatherworker to Lv 53 and Blacksmith to Lv 52 — so no single class can finish it unaided.

4 of the 6 raw materials come out of the ground, and one of them is time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Mythrite Nugget has the widest use: 102 recipes call for it, spanning seven of the eight crafting classes.