Courtly Lover's Blade ★★★★

Taken all the way down to base materials, one Courtly Lover's Blade is 2 crafting steps deep and needs 4 intermediates — Double Duraluminum Ingot ×4, Grade 4 Gemsap of Strength ×2, Fulgurpine Lumber ×1 and 1 other — which resolve to 10 distinct raw materials totalling 44 units, plus 50 crystals.

That bill outweighs 12,337 of the 13,602 recipes tracked here and 1,595 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 15 Earth Cluster, 15 Fire Cluster, 8 Fire Crystal and 4 other kinds.

The chain crosses three disciplines — Blacksmith to Lv 100, Alchemist to Lv 100 and Carpenter to Lv 100 — so no single class can finish it unaided.

7 of the 10 raw materials come out of the ground, and 3 of them are time-gated: Dense Aluminum Ore (10:00, 22:00), Fulgurpine Log (8:00, 20:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 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.