Titanium Scythe

Taken all the way down to base materials, one Titanium Scythe is 2 crafting steps deep and needs 2 intermediates — Cloud Mica Whetstone ×1 and Titanium Nugget ×1 — which resolve to 5 distinct raw materials totalling 11 units, plus 18 crystals.

That bill outweighs 5,999 of the 13,602 recipes tracked here and 661 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 9 are burned by the intermediates, so the real crystal cost is 9 Fire Crystal, 5 Wind Crystal and 4 Earth Crystal.

The chain crosses two disciplines — Blacksmith to Lv 56 and Goldsmith to Lv 56 — so no single class can finish it unaided.

All 5 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, Titanium Nugget has the widest use: 112 recipes call for it, spanning six of the eight crafting classes.