Amateur's Saw

Taken all the way down to base materials, one Amateur's Saw is 3 crafting steps deep and needs 3 intermediates — Bronze Ingot ×2, Ash Lumber ×1 and Bronze Rivets ×1 — which resolve to 3 distinct raw materials totalling 9 units, plus 6 crystals.

That bill outweighs 5,492 of the 13,602 recipes tracked here and 597 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

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

The chain crosses two disciplines — Blacksmith to Lv 12 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.

Amateur's Saw is itself consumed by 1 further recipe, all of them Blacksmith recipes.