Ra'Kaznar Blunderbuss

Taken all the way down to base materials, one Ra'Kaznar Blunderbuss is 3 crafting steps deep and needs 6 intermediates — Ra'Kaznar Ingot ×3, Black Star ×1, Claro Walnut Lumber ×1 and 3 others — which resolve to 6 distinct raw materials totalling 37 units, plus 80 crystals.

That bill outweighs 11,564 of the 13,602 recipes tracked here and 1,403 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 64 are burned by the intermediates, so the real crystal cost is 32 Fire Crystal, 32 Wind Crystal, 8 Earth Crystal and 1 other kind.

The chain crosses four disciplines — Blacksmith to Lv 98, Carpenter to Lv 98, Goldsmith to Lv 98 and Alchemist to Lv 95 — 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, Ra'Kaznar Ingot has the widest use: 166 recipes call for it, spanning seven of the eight crafting classes.