Millmaster's Workboots ★★

Taken all the way down to base materials, one Millmaster's Workboots is 3 crafting steps deep and needs 5 intermediates — Griffin Leather ×2, Astral Silk ×1, Aurum Regis Nugget ×1 and 2 others — which resolve to 15 distinct raw materials totalling 42 units, plus 30 crystals.

That bill outweighs 12,044 of the 13,602 recipes tracked here and 1,777 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 10 Lightning Crystal, 6 Wind Cluster, 5 Wind Crystal and 3 other kinds.

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

8 of the 15 raw materials come out of the ground, and 6 of them are time-gated: Astral Moraine (0:00, 12:00), Red Alumen (10:00, 22:00) and 4 others. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 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.