Molybdenum Gunblade

Taken all the way down to base materials, one Molybdenum Gunblade is 2 crafting steps deep and needs 3 intermediates — Molybdenum Ingot ×2, Palladium Nugget ×1 and Zelkova Lumber ×1 — which resolve to 5 distinct raw materials totalling 19 units, plus 30 crystals.

That bill outweighs 7,589 of the 13,602 recipes tracked here and 804 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 20 are burned by the intermediates, so the real crystal cost is 15 Fire Crystal, 10 Wind Crystal and 5 Earth Crystal.

The chain crosses three disciplines — Blacksmith to Lv 68, Carpenter to Lv 68 and Goldsmith to Lv 68 — so no single class can finish it unaided.

All 5 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, Palladium Nugget has the widest use: 129 recipes call for it, spanning seven of the eight crafting classes.