Diadochos Main Gauches ★★★★

Taken all the way down to base materials, one Diadochos Main Gauches is 2 crafting steps deep and needs 4 intermediates — Softsilver Ingot ×4, Grade 8 Dexterity Alkahest ×2, Chondrite Ingot ×1 and 1 other — which resolve to 10 distinct raw materials totalling 47 units, plus 50 crystals.

That bill outweighs 12,643 of the 13,602 recipes tracked here and 1,700 of the 1,932 Blacksmith 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 18 Earth Cluster, 15 Fire Cluster, 8 Fire Crystal and 3 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 90, Alchemist to Lv 90 and Leatherworker 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: Field Mustard (10:00, 22:00), Lovingbloom (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Chondrite Ingot has the widest use: 210 recipes call for it, spanning seven of the eight crafting classes.