Ceremonial Ring of Healing ★★★

Taken all the way down to base materials, one Ceremonial Ring of Healing is 2 crafting steps deep and needs 4 intermediates — Claro Walnut Lumber ×1, Cordia Lumber ×1, Grade 3 Gemsap of Mind ×1 and 1 other — which resolve to 10 distinct raw materials totalling 23 units, plus 32 crystals.

That bill outweighs 8,647 of the 13,602 recipes tracked here and 869 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 9 Wind Cluster, 8 Wind Crystal, 6 Ice Cluster and 3 other kinds.

The chain crosses three disciplines — Carpenter to Lv 100, Alchemist to Lv 100 and Goldsmith to Lv 100 — so no single class can finish it unaided.

6 of the 10 raw materials come out of the ground, and 3 of them are time-gated: Cordia Log (0:00, 12:00), Fulgurite (2:00, 14:00) and 1 other. The widest gap between consecutive opening times is 6 Eorzean hours, about 18 real-world minutes.

Of the intermediates, Claro Walnut Lumber has the widest use: 82 recipes call for it, spanning six of the eight crafting classes.