Adamantite Scythe

Taken all the way down to base materials, one Adamantite Scythe is 2 crafting steps deep and needs 1 intermediate — Adamantite Nugget ×2 — which resolves to 4 distinct raw materials totalling 14 units, plus 20 crystals.

That bill outweighs 6,557 of the 13,602 recipes tracked here and 699 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 10 are burned by the intermediates, so the real crystal cost is 15 Fire Crystal and 5 Earth Crystal.

Every step is Blacksmith work, from a Lv 58 intermediate up to the Lv 59 finish, so one class covers the whole chain.

3 of the 4 raw materials come out of the ground, and 2 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00) and Darksteel Ore (1:00). The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Adamantite Nugget has the widest use: 79 recipes call for it, spanning six of the eight crafting classes.