High Mythrite Helm of Fending ★★★

Taken all the way down to base materials, one High Mythrite Helm of Fending is 3 crafting steps deep and needs 5 intermediates — Grade 1 Vitality Dissolvent ×2, High Mythrite Ingot ×2, Aurum Regis Nugget ×1 and 2 others — which resolve to 11 distinct raw materials totalling 35 units, plus 33 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 28 are burned by the intermediates, so the real crystal cost is 9 Earth Cluster, 6 Fire Cluster, 5 Wind Crystal and 5 other kinds.

The chain crosses five disciplines — Armorer to Lv 60, Alchemist to Lv 60, Blacksmith to Lv 60, Leatherworker to Lv 60 and Goldsmith to Lv 58 — so no single class can finish it unaided.

7 of the 11 raw materials come out of the ground, and 4 of them are time-gated: Lumythrite Ore (2:00, 14:00), Wattle Bark (2:00, 14:00) and 2 others. The widest gap between consecutive opening times is 9 Eorzean hours, about 26 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.