Polished Adamantite File ★★

Taken all the way down to base materials, one Polished Adamantite File is 3 crafting steps deep and needs 3 intermediates — Adamantite Ingot ×2, Griffin Leather ×1 and Adamantite Nugget ×2 — which resolve to 11 distinct raw materials totalling 33 units, plus 22 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,266 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 18 are burned by the intermediates, so the real crystal cost is 10 Fire Crystal, 6 Earth Cluster, 4 Fire Cluster and 1 other kind.

The chain crosses two disciplines — Blacksmith to Lv 60 and Leatherworker to Lv 60 — so no single class can finish it unaided.

6 of the 11 raw materials come out of the ground, and 6 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00), Blue Quartz (6:00, 18:00) and 4 others. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Adamantite Nugget has the widest use: 79 recipes call for it, spanning six of the eight crafting classes.