Militia Armet ★

Taken all the way down to base materials, one Militia Armet is 3 crafting steps deep and needs 4 intermediates — Cobalt Rings ×1, Darksteel Plate ×1, Darksteel Nugget ×2 and 1 other — which resolve to 3 distinct raw materials totalling 9 units, plus 24 crystals.

That bill outweighs 5,492 of the 13,602 recipes tracked here and 519 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 19 are burned by the intermediates, so the real crystal cost is 6 Fire Crystal, 6 Ice Crystal, 5 Fire Shard 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.