Diadochos Earring of Fending ★★★★

Taken all the way down to base materials, one Diadochos Earring of Fending is 2 crafting steps deep and needs 4 intermediates — Chondrite Ingot ×1, Dark Cherry Lumber ×1, Grade 8 Vitality Alkahest ×1 and 1 other — which resolve to 10 distinct raw materials totalling 25 units, plus 32 crystals.

That bill outweighs 9,313 of the 13,602 recipes tracked here and 922 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 8 Fire Crystal, 6 Earth Cluster, 6 Ice Cluster and 4 other kinds.

The chain crosses four disciplines — Armorer to Lv 90, Alchemist to Lv 90, Blacksmith to Lv 90 and Carpenter 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: Dark Cherry Log (2:00, 14:00), Lovingbloom (0:00, 12:00) and 1 other. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

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