Plumed Oak Macuahuitl

Taken all the way down to base materials, one Plumed Oak Macuahuitl is 2 crafting steps deep and needs 1 intermediate — Oak Lumber ×1 — which resolves to 3 distinct raw materials totalling 7 units, plus 12 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 9 of those crystals go into the final step; the other 3 are burned by the intermediates, so the real crystal cost is 8 Wind Shard and 4 Ice Shard.

Every step is Carpenter work, from a Lv 32 intermediate up to the Lv 41 finish, so one class covers the whole chain.

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, Oak Lumber has the widest use: 86 recipes call for it, spanning seven of the eight crafting classes.