Ruthenium Scimitar

Taken all the way down to base materials, one Ruthenium Scimitar is 3 crafting steps deep and needs 4 intermediates — Ihuykanite ×1, Mountain Chromite Ingot ×1, Ruthenium Ingot ×1 and 1 other — which resolve to 6 distinct raw materials totalling 23 units, plus 55 crystals.

That bill outweighs 8,647 of the 13,602 recipes tracked here and 956 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 15 of those crystals go into the final step; the other 40 are burned by the intermediates, so the real crystal cost is 24 Fire Crystal, 24 Wind Crystal and 7 Earth Crystal.

The chain crosses two disciplines — Blacksmith to Lv 93 and Goldsmith to Lv 92 — so no single class can finish it unaided.

All 6 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Annite Whetstone has the widest use: 96 recipes call for it, spanning four of the eight crafting classes.