Durium Rod

Taken all the way down to base materials, one Durium Rod is 3 crafting steps deep and needs 3 intermediates — Durium Ingot ×3, Persimmon Lumber ×1 and Durium Nugget ×4 — which resolve to 4 distinct raw materials totalling 36 units, plus 45 crystals.

That bill outweighs 11,383 of the 13,602 recipes tracked here and 1,827 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 36 are burned by the intermediates, so the real crystal cost is 41 Wind Crystal and 4 Fire Crystal.

The chain crosses two disciplines — Goldsmith to Lv 67 and Carpenter to Lv 66 — so no single class can finish it unaided.

All 4 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Durium Nugget has the widest use: 142 recipes call for it, spanning seven of the eight crafting classes.