Chocobotail Saw

Taken all the way down to base materials, one Chocobotail Saw is 4 crafting steps deep and needs 4 intermediates — Amateur's Saw ×1, Bronze Ingot ×4, Bronze Rivets ×3 and 1 other — which resolve to 3 distinct raw materials totalling 15 units, plus 12 crystals.

That bill outweighs 6,735 of the 13,602 recipes tracked here and 730 of the 1,932 Blacksmith 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 9 Fire Shard, 2 Earth Shard and 1 Wind Shard.

The chain crosses two disciplines — Blacksmith to Lv 16 and Carpenter to Lv 10 — 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, Bronze Ingot has the widest use: 76 recipes call for it, spanning six of the eight crafting classes.