Doom-engine Levinbox ★★★

Taken all the way down to base materials, one Doom-engine Levinbox is 3 crafting steps deep and needs 4 intermediates — Black Star ×2, Octahedrite Nugget ×2, Rhodochrosite ×2 and 1 other — which resolve to 7 distinct raw materials totalling 39 units, plus 62 crystals.

That bill outweighs 11,756 of the 13,602 recipes tracked here and 1,247 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 56 are burned by the intermediates, so the real crystal cost is 16 Water Crystal, 16 Wind Crystal, 12 Fire Cluster and 3 other kinds.

The chain crosses four disciplines — Armorer to Lv 100, Blacksmith to Lv 100, Goldsmith to Lv 100 and Alchemist to Lv 95 — so no single class can finish it unaided.

4 of the 7 raw materials come out of the ground, and 2 of them are time-gated: Octahedrite (10:00, 22:00) and Raw Rhodochrosite (8:00, 20:00). The widest gap between consecutive opening times is 10 Eorzean hours, about 29 real-world minutes.

Of the intermediates, Black Star has the widest use: 161 recipes call for it, spanning six of the eight crafting classes.