Bantam Train ★★★

Taken all the way down to base materials, one Bantam Train is 2 crafting steps deep and needs 2 intermediates — Ilmenite Ingot ×2 and Rutilated Quartz ×2 — which resolve to 6 distinct raw materials totalling 33 units, plus 30 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,153 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 24 are burned by the intermediates, so the real crystal cost is 12 Fire Cluster, 9 Earth Cluster, 6 Wind Cluster and 1 other kind.

The chain crosses three disciplines — Armorer to Lv 90, Blacksmith to Lv 90 and Goldsmith to Lv 90 — so no single class can finish it unaided.

2 of the 6 raw materials come out of the ground, and 2 of them are time-gated: Ilmenite (8:00, 20:00) and Raw Rutilated Quartz (6:00, 18:00). The widest gap between consecutive opening times is 10 Eorzean hours, about 29 real-world minutes.

Of the intermediates, Ilmenite Ingot has the widest use: 73 recipes call for it, spanning six of the eight crafting classes.