Slothskin Boots of Casting ★★★

Taken all the way down to base materials, one Slothskin Boots of Casting is 3 crafting steps deep and needs 5 intermediates — Ground Sloth Leather ×2, Grade 3 Reisui of Intelligence ×1, Rhodonite ×1 and 2 others — which resolve to 13 distinct raw materials totalling 28 units, plus 25 crystals.

That bill outweighs 9,936 of the 13,602 recipes tracked here and 1,414 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 21 are burned by the intermediates, so the real crystal cost is 9 Wind Crystal, 6 Wind Cluster, 4 Earth Cluster and 3 other kinds.

The chain crosses three disciplines — Leatherworker to Lv 70, Alchemist to Lv 70 and Goldsmith to Lv 70 — so no single class can finish it unaided.

7 of the 13 raw materials come out of the ground, and 3 of them are time-gated: Gyr Abanian Spring Water (10:00, 22:00), Raw Rhodonite (8:00, 20:00) and 1 other. The widest gap between consecutive opening times is 10 Eorzean hours, about 29 real-world minutes.

Of the intermediates, Koppranickel Nugget has the widest use: 124 recipes call for it, spanning seven of the eight crafting classes.