Rarefied Archaeoskin Grimoire

Taken all the way down to base materials, one Rarefied Archaeoskin Grimoire is 2 crafting steps deep and needs 3 intermediates — Archaeornis Leather ×2, Electrum Ingot ×1 and Enchanted Mythrite Ink ×1 — which resolve to 5 distinct raw materials totalling 18 units, plus 17 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 1,264 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 14 are burned by the intermediates, so the real crystal cost is 6 Earth Crystal, 5 Water Crystal, 5 Wind Shard and 1 other kind.

The chain crosses three disciplines — Alchemist to Lv 51, Leatherworker to Lv 51 and Goldsmith to Lv 42 — so no single class can finish it unaided.

One intermediate outranks the result: Archaeornis Leather is a Lv 51 Leatherworker recipe feeding a Lv 50 craft, so that step, not the last one, is the real gate.

3 of the 5 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.