Everseeker's Cross-pein Hammer ★★

Taken all the way down to base materials, one Everseeker's Cross-pein Hammer is 2 crafting steps deep and needs 3 intermediates — Alexandrian Plate ×3, Maraging Steel Ingot ×3 and Ra'Kaznar Ingot ×1 — which resolve to 8 distinct raw materials totalling 45 units, plus 50 crystals.

That bill outweighs 12,451 of the 13,602 recipes tracked here and 1,645 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 21 Earth Cluster, 12 Fire Cluster, 9 Ice Cluster and 1 other kind.

The chain crosses two disciplines — Blacksmith to Lv 100 and Armorer to Lv 100 — so no single class can finish it unaided.

4 of the 8 raw materials come out of the ground, and 2 of them are time-gated: Alexandrian Ore (6:00, 18:00) and Harmonite Ore (6:00, 18:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Ra'Kaznar Ingot has the widest use: 166 recipes call for it, spanning seven of the eight crafting classes.