Walnut Fishing Rod

Taken all the way down to base materials, one Walnut Fishing Rod is 2 crafting steps deep and needs 2 intermediates — Steel Ingot ×1 and Walnut Lumber ×1 — which resolve to 4 distinct raw materials totalling 7 units, plus 10 crystals.

That bill outweighs 4,963 of the 13,602 recipes tracked here and 509 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 4 are burned by the intermediates, so the real crystal cost is 5 Wind Shard, 3 Ice Shard and 2 Fire Shard.

The chain crosses two disciplines — Carpenter to Lv 32 and Blacksmith to Lv 26 — 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.

Walnut Fishing Rod is itself consumed by 1 further recipe, all of them Carpenter recipes.