Hidemaster's Knife ★★

Taken all the way down to base materials, one Hidemaster's Knife is 3 crafting steps deep and needs 5 intermediates — Adamantite Ingot ×3, Adamantite Rivets ×1, Aurum Regis Nugget ×1 and 2 others — which resolve to 13 distinct raw materials totalling 44 units, plus 37 crystals.

That bill outweighs 12,337 of the 13,602 recipes tracked here and 1,595 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 33 are burned by the intermediates, so the real crystal cost is 20 Fire Crystal, 6 Earth Cluster, 5 Wind Crystal and 2 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 60, Leatherworker to Lv 60 and Goldsmith to Lv 58 — so no single class can finish it unaided.

8 of the 13 raw materials come out of the ground, and 7 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 5 others. 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.