Mythrite File

Taken all the way down to base materials, one Mythrite File is 3 crafting steps deep and needs 3 intermediates — Mythrite Ingot ×2, Wyvern Leather ×1 and Mythrite Nugget ×2 — which resolve to 5 distinct raw materials totalling 24 units, plus 22 crystals.

That bill outweighs 8,926 of the 13,602 recipes tracked here and 1,021 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 7 of those crystals go into the final step; the other 15 are burned by the intermediates, so the real crystal cost is 16 Fire Crystal and 6 Earth Crystal.

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

4 of the 5 raw materials come out of the ground, and one of them is time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Mythrite Nugget has the widest use: 102 recipes call for it, spanning seven of the eight crafting classes.