Manganese Horn of the Last Unicorn

Taken all the way down to base materials, one Manganese Horn of the Last Unicorn is 3 crafting steps deep and needs 5 intermediates — Blue Zircon ×2, Grade 5 Dexterity Alkahest ×1, Manganese Ingot ×1 and 2 others — which resolve to 9 distinct raw materials totalling 30 units, plus 72 crystals.

That bill outweighs 10,368 of the 13,602 recipes tracked here and 1,694 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 56 are burned by the intermediates, so the real crystal cost is 40 Wind Crystal, 16 Fire Crystal, 8 Earth Crystal and 1 other kind.

The chain crosses four disciplines — Goldsmith to Lv 87, Blacksmith to Lv 86, Leatherworker to Lv 84 and Alchemist to Lv 83 — so no single class can finish it unaided.

7 of the 9 raw materials match a gathering node, none of them timed; the other 2 come from vendors, drops or content this site does not track.

Of the intermediates, Manganese Ingot has the widest use: 134 recipes call for it, spanning seven of the eight crafting classes.