Cobalt Scythe

Taken all the way down to base materials, one Cobalt Scythe is 2 crafting steps deep and needs 3 intermediates — Basilisk Whetstone ×1, Cobalt Ingot ×1 and Rosewood Lumber ×1 — which resolve to 4 distinct raw materials totalling 7 units, plus 27 crystals.

That bill outweighs 4,963 of the 13,602 recipes tracked here and 507 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 16 are burned by the intermediates, so the real crystal cost is 11 Fire Shard, 11 Wind Shard and 5 Earth Shard.

The chain crosses three disciplines — Blacksmith to Lv 45, Carpenter to Lv 45 and Goldsmith to Lv 40 — so no single class can finish it unaided.

All 4 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, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.