Rakshasa Katana ★★★★

Taken all the way down to base materials, one Rakshasa Katana is 4 crafting steps deep and needs 7 intermediates — Chigusa Ingot ×3, Grade 4 Reisui of Strength ×3, Evergleam Ingot ×1 and 4 others — which resolve to 14 distinct raw materials totalling 54 units, plus 50 crystals.

That bill outweighs 12,945 of the 13,602 recipes tracked here and 1,762 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 22 Fire Crystal, 8 Fire Cluster, 8 Wind Crystal and 4 other kinds.

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

10 of the 14 raw materials come out of the ground, and 3 of them are time-gated: Azim Spring Water (8:00, 20:00), Evergleam Ore (10:00, 22:00) and 1 other. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Palladium Nugget has the widest use: 129 recipes call for it, spanning seven of the eight crafting classes.