Mythrite Zweihander

Taken all the way down to base materials, one Mythrite Zweihander is 3 crafting steps deep and needs 8 intermediates — Mythrite Ingot ×4, Holy Cedar Lumber ×1, Mythril Ingot ×1 and 5 others — which resolve to 10 distinct raw materials totalling 61 units, plus 50 crystals.

That bill outweighs 13,148 of the 13,602 recipes tracked here and 1,815 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 7 of those crystals go into the final step; the other 43 are burned by the intermediates, so the real crystal cost is 28 Fire Crystal, 6 Earth Crystal, 6 Water Crystal and 2 other kinds.

The chain crosses four disciplines — Blacksmith to Lv 53, Alchemist to Lv 52, Carpenter to Lv 52 and Leatherworker to Lv 52 — so no single class can finish it unaided.

7 of the 10 raw materials come out of the ground, and 2 of them are time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00) and Dravanian Mistletoe (0:00, 12:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Mythril Ingot has the widest use: 135 recipes call for it, spanning seven of the eight crafting classes.