Mythrite Hauberk of Fending

Taken all the way down to base materials, one Mythrite Hauberk of Fending is 3 crafting steps deep and needs 5 intermediates — Mythrite Nugget ×4, Archaeornis Leather ×1, Darksteel Rings ×1 and 2 others — which resolve to 6 distinct raw materials totalling 35 units, plus 31 crystals.

That bill outweighs 11,223 of the 13,602 recipes tracked here and 1,179 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 15 Fire Crystal, 6 Ice Crystal, 5 Earth Crystal and 1 other kind.

The chain crosses four disciplines — Armorer to Lv 51, Blacksmith to Lv 51, Leatherworker to Lv 51 and Goldsmith to Lv 42 — so no single class can finish it unaided.

5 of the 6 raw materials come out of the ground, and 2 of them are time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00) and Darksteel Ore (1:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Electrum Ingot has the widest use: 234 recipes call for it, spanning seven of the eight crafting classes.