High Mythrite Alembic ★★★

Taken all the way down to base materials, one High Mythrite Alembic is 3 crafting steps deep and needs 6 intermediates — Luminous Fiber ×3, Eikon Iron Ingot ×2, High Mythrite Ingot ×2 and 3 others — which resolve to 18 distinct raw materials totalling 44 units, plus 39 crystals.

That bill outweighs 12,337 of the 13,602 recipes tracked here and 1,310 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 11 Fire Cluster, 8 Wind Cluster, 6 Earth Cluster and 5 other kinds.

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

11 of the 18 raw materials come out of the ground, and 6 of them are time-gated: Crystallized Sap (8:00, 20:00), Lumythrite Ore (2:00, 14:00) and 4 others. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Gold Ingot has the widest use: 184 recipes call for it, spanning seven of the eight crafting classes.