Everseeker's Spinning Wheel ★★

Taken all the way down to base materials, one Everseeker's Spinning Wheel is 2 crafting steps deep and needs 4 intermediates — Ipe Lumber ×3, Optical Nanofiber ×2, Alexandrian Plate ×1 and 1 other — which resolve to 9 distinct raw materials totalling 45 units, plus 50 crystals.

That bill outweighs 12,451 of the 13,602 recipes tracked here and 1,317 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 15 Ice Cluster, 12 Wind Cluster, 8 Fire Crystal and 3 other kinds.

The chain crosses four disciplines — Carpenter to Lv 100, Alchemist to Lv 100, Armorer to Lv 100 and Blacksmith to Lv 98 — so no single class can finish it unaided.

5 of the 9 raw materials come out of the ground, and 3 of them are time-gated: Alexandrian Ore (6:00, 18:00), Ipe Log (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Ra'Kaznar Ingot has the widest use: 166 recipes call for it, spanning seven of the eight crafting classes.