Saurian Boots of Healing ★★★

Taken all the way down to base materials, one Saurian Boots of Healing is 2 crafting steps deep and needs 4 intermediates — Terminus Putty ×2, Hippogryph Leather ×1, Rose Gold Nugget ×1 and 1 other — which resolve to 9 distinct raw materials totalling 13 units, plus 15 crystals.

That bill outweighs 6,426 of the 13,602 recipes tracked here and 788 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 12 are burned by the intermediates, so the real crystal cost is 4 Earth Cluster, 3 Earth Crystal, 3 Wind Crystal and 3 other kinds.

The chain crosses three disciplines — Leatherworker to Lv 50, Alchemist to Lv 50 and Goldsmith to Lv 50 — so no single class can finish it unaided.

4 of the 9 raw materials come out of the ground, and 2 of them are time-gated: Gold Ore (9:00) and Shroud Tea Leaves (2:00). The widest gap between consecutive opening times is 17 Eorzean hours, about 50 real-world minutes.

Of the intermediates, Rose Gold Nugget has the widest use: 179 recipes call for it, spanning seven of the eight crafting classes.