Ala Mhigan Gown ★★

Taken all the way down to base materials, one Ala Mhigan Gown is 3 crafting steps deep and needs 5 intermediates — Rhea Cloth ×1, Sewing Thread ×1, Worsted Yarn ×1 and 2 others — which resolve to 9 distinct raw materials totalling 21 units, plus 27 crystals.

That bill outweighs 8,152 of the 13,602 recipes tracked here and 1,065 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 23 are burned by the intermediates, so the real crystal cost is 10 Lightning Crystal, 7 Wind Crystal, 4 Lightning Cluster and 2 other kinds.

The chain crosses two disciplines — Weaver to Lv 70 and Alchemist to Lv 25 — so no single class can finish it unaided.

5 of the 9 raw materials come out of the ground, and one of them is time-gated: Rhea (0:00, 12:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Bloodhempen Yarn has the widest use: 92 recipes call for it, spanning four of the eight crafting classes.