Ironworks Apron of Crafting ★★★

Taken all the way down to base materials, one Ironworks Apron of Crafting is 3 crafting steps deep and needs 5 intermediates — Luminous Fiber ×3, Eikon Cloth ×2, Eikon Leather ×1 and 2 others — which resolve to 14 distinct raw materials totalling 38 units, plus 33 crystals.

That bill outweighs 11,698 of the 13,602 recipes tracked here and 1,682 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 28 are burned by the intermediates, so the real crystal cost is 13 Lightning Cluster, 8 Wind Cluster, 5 Earth Cluster and 2 other kinds.

The chain crosses four disciplines — Weaver to Lv 60, Alchemist to Lv 60, Blacksmith to Lv 60 and Leatherworker to Lv 60 — so no single class can finish it unaided.

8 of the 14 raw materials come out of the ground, and 5 of them are time-gated: Crystallized Sap (8:00, 20:00), Frost Cotton Boll (6:00, 18:00) and 3 others. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, High Mythrite Ingot has the widest use: 150 recipes call for it, spanning seven of the eight crafting classes.