Adamantite Cross-pein Hammer

Taken all the way down to base materials, one Adamantite Cross-pein Hammer is 2 crafting steps deep and needs 3 intermediates — Adamantite Nugget ×2, Amphiptere Leather ×1 and Scale Glue ×1 — which resolve to 7 distinct raw materials totalling 23 units, plus 23 crystals.

That bill outweighs 8,647 of the 13,602 recipes tracked here and 956 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 20 are burned by the intermediates, so the real crystal cost is 10 Fire Crystal, 5 Earth Crystal, 5 Water Crystal and 2 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 60, Alchemist to Lv 59 and Leatherworker to Lv 58 — so no single class can finish it unaided.

3 of the 7 raw materials come out of the ground, and 2 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00) and Darksteel Ore (1:00). The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Amphiptere Leather has the widest use: 108 recipes call for it, spanning seven of the eight crafting classes.