Aurum Regis Crown of Healing ★★

Taken all the way down to base materials, one Aurum Regis Crown of Healing is 3 crafting steps deep and needs 6 intermediates — Aurum Regis Ingot ×3, Amphiptere Leather ×1, Grade 2 Mind Dissolvent ×1 and 3 others — which resolve to 13 distinct raw materials totalling 29 units, plus 31 crystals.

That bill outweighs 10,170 of the 13,602 recipes tracked here and 1,665 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 27 are burned by the intermediates, so the real crystal cost is 9 Wind Crystal, 5 Earth Crystal, 5 Wind Shard and 4 other kinds.

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

9 of the 13 raw materials come out of the ground, and 4 of them are time-gated: Aurum Regis Ore (2:00, 14:00), Clary Sage (0:00, 20:00) and 2 others. The widest gap between consecutive opening times is 7 Eorzean hours, about 20 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.