Chondrite Magitek Samurai Blade

Taken all the way down to base materials, one Chondrite Magitek Samurai Blade is 2 crafting steps deep and needs 4 intermediates — Chondrite Ingot ×3, Annite Whetstone ×1, AR-Caean Velvet ×1 and 1 other — which resolve to 6 distinct raw materials totalling 33 units, plus 64 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,266 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 48 are burned by the intermediates, so the real crystal cost is 32 Fire Crystal, 16 Wind Crystal, 8 Earth Crystal and 1 other kind.

The chain crosses three disciplines — Blacksmith to Lv 88, Weaver to Lv 88 and Goldsmith to Lv 86 — 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, Chondrite Ingot has the widest use: 210 recipes call for it, spanning seven of the eight crafting classes.