Hammermaster's Beetle ★★

Taken all the way down to base materials, one Hammermaster's Beetle is 3 crafting steps deep and needs 7 intermediates — Adamantite Ingot ×3, Adamantite Rivets ×1, Aurum Regis Ingot ×1 and 4 others — which resolve to 15 distinct raw materials totalling 53 units, plus 46 crystals.

That bill outweighs 12,925 of the 13,602 recipes tracked here and 1,759 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 42 are burned by the intermediates, so the real crystal cost is 20 Fire Crystal, 14 Wind Crystal, 6 Fire Cluster and 2 other kinds.

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

11 of the 15 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), Aurum Regis Ore (2:00, 14:00) 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.