Kumbhiraskin Armguards of the Last Unicorn

Taken all the way down to base materials, one Kumbhiraskin Armguards of the Last Unicorn is 2 crafting steps deep and needs 4 intermediates — Kumbhira Leather ×2, Grade 5 Dexterity Alkahest ×1, Saiga Leather ×1 and 1 other — which resolve to 7 distinct raw materials totalling 25 units, plus 56 crystals.

That bill outweighs 9,313 of the 13,602 recipes tracked here and 1,283 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 40 are burned by the intermediates, so the real crystal cost is 32 Earth Crystal, 8 Lightning Crystal, 8 Water Crystal and 1 other kind.

The chain crosses three disciplines — Leatherworker to Lv 86, Weaver to Lv 86 and Alchemist to Lv 83 — so no single class can finish it unaided.

4 of the 7 raw materials match a gathering node, none of them timed; the other 3 come from vendors, drops or content this site does not track.

Of the intermediates, Saiga Leather has the widest use: 83 recipes call for it, spanning seven of the eight crafting classes.