Rarefied Archaeoskin Codex

Taken all the way down to base materials, one Rarefied Archaeoskin Codex is 2 crafting steps deep and needs 3 intermediates — Archaeornis Leather ×2, Enchanted Mythrite Ink ×1 and Hippogryph Leather ×1 — which resolve to 6 distinct raw materials totalling 16 units, plus 18 crystals.

That bill outweighs 6,959 of the 13,602 recipes tracked here and 1,240 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 12 are burned by the intermediates, so the real crystal cost is 9 Earth Crystal, 6 Water Crystal and 3 Lightning Crystal.

The chain crosses two disciplines — Alchemist to Lv 52 and Leatherworker to Lv 51 — so no single class can finish it unaided.

3 of the 6 raw materials come out of the ground, and one of them is time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Hippogryph Leather has the widest use: 131 recipes call for it, spanning seven of the eight crafting classes.