Militia Barbut ★

Taken all the way down to base materials, one Militia Barbut is 3 crafting steps deep and needs 5 intermediates — Cobalt Plate ×1, Cobalt Rivets ×1, Darksteel Plate ×1 and 2 others — which resolve to 3 distinct raw materials totalling 18 units, plus 44 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 694 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 39 are burned by the intermediates, so the real crystal cost is 25 Fire Shard, 6 Fire Crystal, 6 Ice Crystal and 2 other kinds.

The chain crosses two disciplines — Armorer to Lv 50 and Blacksmith to Lv 50 — so no single class can finish it unaided.

All 3 raw materials are gathered, and one of them is time-gated: Darksteel Ore (1:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.