Diadochos Rod ★★★★

Taken all the way down to base materials, one Diadochos Rod is 3 crafting steps deep and needs 5 intermediates — Softsilver Ingot ×3, Grade 8 Intelligence Alkahest ×2, Spodumene ×2 and 2 others — which resolve to 10 distinct raw materials totalling 48 units, plus 58 crystals.

That bill outweighs 12,691 of the 13,602 recipes tracked here and 2,043 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 52 are burned by the intermediates, so the real crystal cost is 18 Fire Cluster, 16 Wind Crystal, 9 Earth Cluster and 3 other kinds.

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

6 of the 10 raw materials come out of the ground, and 3 of them are time-gated: Lovingbloom (0:00, 12:00), Raw Spodumene (8:00, 20:00) and 1 other. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Star Quartz has the widest use: 157 recipes call for it, spanning seven of the eight crafting classes.