High Mythrite Cross-pein Hammer ★★★

Taken all the way down to base materials, one High Mythrite Cross-pein Hammer is 2 crafting steps deep and needs 5 intermediates — High Mythrite Ingot ×3, Luminous Fiber ×3, Gold Ingot ×1 and 2 others — which resolve to 17 distinct raw materials totalling 39 units, plus 35 crystals.

That bill outweighs 11,756 of the 13,602 recipes tracked here and 1,437 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 30 are burned by the intermediates, so the real crystal cost is 15 Fire Cluster, 9 Earth Cluster, 5 Wind Cluster and 3 other kinds.

The chain crosses four disciplines — Blacksmith to Lv 60, Alchemist to Lv 60, Carpenter to Lv 60 and Goldsmith to Lv 50 — so no single class can finish it unaided.

9 of the 17 raw materials come out of the ground, and 7 of them are time-gated: Crystallized Sap (8:00, 20:00), Lumythrite Ore (2:00, 14:00) and 5 others. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

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