Fat Cat Bank

Taken all the way down to base materials, one Fat Cat Bank is 3 crafting steps deep and needs 7 intermediates — Dragon Leather ×2, Rose Gold Nugget ×2, Hardsilver Ingot ×1 and 4 others — which resolve to 10 distinct raw materials totalling 33 units, plus 38 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,755 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 29 are burned by the intermediates, so the real crystal cost is 20 Wind Crystal, 10 Earth Crystal, 4 Fire Crystal and 2 other kinds.

The chain crosses three disciplines — Goldsmith to Lv 57, Leatherworker to Lv 56 and Weaver to Lv 51 — so no single class can finish it unaided.

8 of the 10 raw materials come out of the ground, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 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.