Deepgold Revolver

Taken all the way down to base materials, one Deepgold Revolver is 2 crafting steps deep and needs 4 intermediates — Deepgold Nugget ×2, Crimson Firesand ×1, Oroshigane Ingot ×1 and 1 other — which resolve to 8 distinct raw materials totalling 27 units, plus 39 crystals.

That bill outweighs 9,763 of the 13,602 recipes tracked here and 1,123 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 28 are burned by the intermediates, so the real crystal cost is 22 Fire Crystal, 6 Water Crystal, 6 Wind Crystal and 1 other kind.

The chain crosses three disciplines — Blacksmith to Lv 71, Alchemist to Lv 71 and Goldsmith to Lv 71 — so no single class can finish it unaided.

All 8 raw materials are gathered, and one of them is time-gated: Gold Ore (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Oroshigane Ingot has the widest use: 114 recipes call for it, spanning six of the eight crafting classes.