Apkallu Weathervane

Taken all the way down to base materials, one Apkallu Weathervane is 3 crafting steps deep and needs 3 intermediates — Mythril Ingot ×8, Mahogany Lumber ×4 and Mythril Rivets ×4 — which resolve to 2 distinct raw materials totalling 36 units, plus 82 crystals.

That bill outweighs 11,383 of the 13,602 recipes tracked here and 1,369 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 72 are burned by the intermediates, so the real crystal cost is 57 Fire Shard, 20 Wind Shard and 5 Earth Shard.

The chain crosses two disciplines — Blacksmith to Lv 42 and Carpenter to Lv 39 — so no single class can finish it unaided.

Both raw materials are gathered, and no spot for either is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Mythril Ingot has the widest use: 135 recipes call for it, spanning seven of the eight crafting classes.