Rarefied Mythrite Sallet

Taken all the way down to base materials, one Rarefied Mythrite Sallet is 2 crafting steps deep and needs 3 intermediates — Mythrite Nugget ×2, Archaeornis Leather ×1 and Electrum Ingot ×1 — which resolve to 5 distinct raw materials totalling 20 units, plus 17 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 757 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 14 are burned by the intermediates, so the real crystal cost is 6 Fire Crystal, 5 Wind Shard, 4 Earth Crystal and 1 other kind.

The chain crosses four disciplines — Armorer to Lv 50, Blacksmith to Lv 51, Leatherworker to Lv 51 and Goldsmith to Lv 42 — so no single class can finish it unaided.

One intermediate outranks the result: Mythrite Nugget is a Lv 51 Blacksmith recipe feeding a Lv 50 craft, so that step, not the last one, is the real gate.

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