Hallowed Chestnut Mask of Casting

Taken all the way down to base materials, one Hallowed Chestnut Mask of Casting is 3 crafting steps deep and needs 8 intermediates — Grade 1 Intelligence Dissolvent ×1, Hallowed Chestnut Lumber ×1, Hardsilver Ingot ×1 and 5 others — which resolve to 13 distinct raw materials totalling 34 units, plus 45 crystals.

That bill outweighs 11,052 of the 13,602 recipes tracked here and 1,145 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 36 are burned by the intermediates, so the real crystal cost is 23 Wind Crystal, 13 Water Crystal, 5 Wind Shard and 1 other kind.

The chain crosses three disciplines — Carpenter to Lv 56, Alchemist to Lv 56 and Goldsmith to Lv 56 — so no single class can finish it unaided.

9 of the 13 raw materials come out of the ground, and 2 of them are time-gated: Abalathian Mistletoe (6:00, 18:00) and Volcanic Rock Salt (17:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Hardsilver Ingot has the widest use: 117 recipes call for it, spanning seven of the eight crafting classes.