Classical Ring of Healing ★★

Taken all the way down to base materials, one Classical Ring of Healing is 3 crafting steps deep and needs 4 intermediates — Rhodium Ingot ×2, Grade 6 Mind Alkahest ×1, Star Quartz ×1 and 1 other — which resolve to 9 distinct raw materials totalling 24 units, plus 40 crystals.

That bill outweighs 8,926 of the 13,602 recipes tracked here and 1,346 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 34 are burned by the intermediates, so the real crystal cost is 16 Wind Crystal, 9 Fire Cluster, 9 Wind Cluster and 2 other kinds.

The chain crosses two disciplines — Goldsmith to Lv 90 and Alchemist to Lv 90 — so no single class can finish it unaided.

6 of the 9 raw materials come out of the ground, and 2 of them are time-gated: Double-edged Herb (10:00, 22:00) and Rhodium Sand (4:00, 16:00). The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Star Quartz has the widest use: 157 recipes call for it, spanning seven of the eight crafting classes.