Sinfender ★★

Taken all the way down to base materials, one Sinfender is 3 crafting steps deep and needs 5 intermediates — Grade 2 Vitality Alkahest ×2, Tungsten Steel Ingot ×2, Onyx ×1 and 2 others — which resolve to 9 distinct raw materials totalling 29 units, plus 36 crystals.

That bill outweighs 10,170 of the 13,602 recipes tracked here and 1,176 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 32 are burned by the intermediates, so the real crystal cost is 20 Wind Crystal, 6 Earth Cluster, 6 Fire Cluster and 2 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 80, Alchemist to Lv 80 and Goldsmith to Lv 80 — so no single class can finish it unaided.

6 of the 9 raw materials come out of the ground, and 3 of them are time-gated: Raw Onyx (0:00, 12:00), Tungsten Ore (10:00, 22:00) and 1 other. The widest gap between consecutive opening times is 10 Eorzean hours, about 29 real-world minutes.

Of the intermediates, Tungsten Steel Ingot has the widest use: 113 recipes call for it, spanning six of the eight crafting classes.