Swallowskin Robe of Casting

Taken all the way down to base materials, one Swallowskin Robe of Casting is 3 crafting steps deep and needs 7 intermediates — Grade 1 Intelligence Alkahest ×2, Sea Swallow Leather ×2, Bright Linen Yarn ×1 and 4 others — which resolve to 10 distinct raw materials totalling 29 units, plus 58 crystals.

That bill outweighs 10,170 of the 13,602 recipes tracked here and 1,478 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 14 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 21 Earth Crystal, 21 Wind Crystal, 10 Lightning Crystal and 1 other kind.

The chain crosses four disciplines — Leatherworker to Lv 79, Goldsmith to Lv 78, Weaver to Lv 78 and Alchemist to Lv 73 — so no single class can finish it unaided.

7 of the 10 raw materials come out of the ground, and one of them is time-gated: Raw Petalite (6:00, 18:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Dwarven Cotton has the widest use: 165 recipes call for it, spanning eight of the eight crafting classes.