Decorated Bronze Barbut

Taken all the way down to base materials, one Decorated Bronze Barbut is 4 crafting steps deep and needs 6 intermediates — Brass Ingot ×1, Bronze Barbut ×1, Copper Ingot ×2 and 3 others — which resolve to 3 distinct raw materials totalling 18 units, plus 12 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 694 of the 1,441 Armorer ones, and 1 recipe nests deeper.

Only 2 of those crystals go into the final step; the other 10 are burned by the intermediates, so the real crystal cost is 4 Fire Shard, 3 Ice Shard, 3 Wind Shard and 1 other kind.

The chain crosses three disciplines — Armorer to Lv 16, Goldsmith to Lv 14 and Blacksmith to Lv 3 — so no single class can finish it unaided.

All 3 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, Brass Ingot has the widest use: 94 recipes call for it, spanning seven of the eight crafting classes.