Diadochos Codex ★★★★

Taken all the way down to base materials, one Diadochos Codex is 2 crafting steps deep and needs 4 intermediates — Softsilver Ingot ×3, Grade 8 Mind Alkahest ×2, Spodumene ×2 and 1 other — which resolve to 11 distinct raw materials totalling 47 units, plus 50 crystals.

That bill outweighs 12,643 of the 13,602 recipes tracked here and 1,526 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 15 Fire Cluster, 9 Earth Cluster, 8 Water Crystal and 3 other kinds.

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

6 of the 11 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, Softsilver Ingot has the widest use: 53 recipes call for it, spanning seven of the eight crafting classes.