Wyvernskin Jerkin

Taken all the way down to base materials, one Wyvernskin Jerkin is 4 crafting steps deep and needs 7 intermediates — Wyvern Leather ×3, Darksteel Nugget ×1, Holy Rainbow Cloth ×1 and 4 others — which resolve to 8 distinct raw materials totaling 31 units, plus 30 crystals.

That bill outweighs 10,578 of the 13,602 recipes tracked here and 1,562 of the 1,844 Leatherworker ones, and 1 recipe nests deeper.

Only 7 of those crystals go into the final step; the other 23 are burned by the intermediates, so the real crystal cost is 13 Earth Crystal, 7 Lightning Crystal, 3 Fire Crystal and 3 other kinds.

The chain crosses four disciplines — Leatherworker to Lv 54, Alchemist to Lv 52, Weaver to Lv 52 and Blacksmith to Lv 50 — so no single class can finish it unaided.

6 of the 8 raw materials come out of the ground, and 3 of them are time-gated: Coerthan Tea Leaves (10:00, 22:00), Dravanian Mistletoe (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 10 Eorzean hours, about 29 real-world minutes.

Of the intermediates, Darksteel Nugget has the widest use: 121 recipes call for it, spanning seven of the eight crafting classes.