Adamantite Spear

Taken all the way down to base materials, one Adamantite Spear is 2 crafting steps deep and needs 5 intermediates — Aurum Regis Nugget ×2, Adamantite Nugget ×1, Amphiptere Leather ×1 and 2 others — which resolve to 10 distinct raw materials totalling 34 units, plus 39 crystals.

That bill outweighs 11,052 of the 13,602 recipes tracked here and 1,145 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 10 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, 5 Earth Crystal, 5 Fire Crystal and 2 other kinds.

The chain crosses five disciplines — Carpenter to Lv 58, Blacksmith to Lv 58, Goldsmith to Lv 58, Leatherworker to Lv 58 and Alchemist to Lv 55 — so no single class can finish it unaided.

6 of the 10 raw materials come out of the ground, and 3 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00), Darksteel Ore (1:00) and 1 other. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.