Aesthete's Doublet of Gathering ★★★

Taken all the way down to base materials, one Aesthete's Doublet of Gathering is 2 crafting steps deep and needs 3 intermediates — Megalania Leather ×5, Defthand's Dissolvent ×4 and Purpure Bead ×2 — which resolve to 8 distinct raw materials totalling 66 units, plus 48 crystals.

That bill outweighs 13,242 of the 13,602 recipes tracked here and 1,842 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 16 Wind Cluster, 12 Earth Cluster, 8 Lightning Cluster and 2 other kinds.

The chain crosses three disciplines — Leatherworker to Lv 80, Alchemist to Lv 80 and Goldsmith to Lv 80 — so no single class can finish it unaided.

3 of the 8 raw materials come out of the ground, and 3 of them are time-gated: Ashen Alumen (10:00, 22:00), Purpure Shell Chip (6:00, 18:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Megalania Leather has the widest use: 50 recipes call for it, spanning six of the eight crafting classes.