Rubellux Partisan ★★

Taken all the way down to base materials, one Rubellux Partisan is 2 crafting steps deep and needs 3 intermediates — Sandalwood Lumber ×3, Pliable Glass Fiber ×2 and Dwarven Mythril Ingot ×1 — which resolve to 9 distinct raw materials totalling 42 units, plus 31 crystals.

That bill outweighs 12,044 of the 13,602 recipes tracked here and 1,260 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 27 are burned by the intermediates, so the real crystal cost is 8 Ice Cluster, 8 Wind Cluster, 7 Fire Crystal and 2 other kinds.

The chain crosses three disciplines — Carpenter to Lv 80, Alchemist to Lv 80 and Blacksmith to Lv 78 — so no single class can finish it unaided.

4 of the 9 raw materials come out of the ground, and 2 of them are time-gated: Sandalwood Log (2:00, 14:00) and Sandalwood Sap (2:00, 14:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Dwarven Mythril Ingot has the widest use: 168 recipes call for it, spanning seven of the eight crafting classes.