Nightsteel Lapidary Hammer ★★★

Taken all the way down to base materials, one Nightsteel Lapidary Hammer is 4 crafting steps deep and needs 8 intermediates — Nightsteel Ingot ×4, Hawk's Eye Sand ×3, Black Willow Lumber ×2 and 5 others — which resolve to 17 distinct raw materials totalling 70 units, plus 50 crystals.

That bill outweighs 13,294 of the 13,602 recipes tracked here and 1,866 of the 1,932 Blacksmith ones, and 1 recipe nests deeper.

Only 4 of those crystals go into the final step; the other 46 are burned by the intermediates, so the real crystal cost is 12 Fire Crystal, 9 Fire Cluster, 6 Earth Cluster and 5 other kinds.

The chain crosses four disciplines — Blacksmith to Lv 70, Alchemist to Lv 70, Carpenter to Lv 70 and Goldsmith to Lv 70 — so no single class can finish it unaided.

10 of the 17 raw materials come out of the ground, and 6 of them are time-gated: Black Willow Log (4:00, 16:00), Hawk's Eye (6:00, 18:00) and 4 others. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Gold Ingot has the widest use: 184 recipes call for it, spanning seven of the eight crafting classes.