Chirurgeon's Essentials ★★

Taken all the way down to base materials, one Chirurgeon's Essentials is 3 crafting steps deep and needs 6 intermediates — Mega-Ether ×2, Mega-Potion ×2, X-Ether ×2 and 3 others — which resolve to 9 distinct raw materials totalling 18 units, plus 51 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 1,264 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 19 of those crystals go into the final step; the other 32 are burned by the intermediates, so the real crystal cost is 23 Water Shard, 20 Lightning Shard, 2 Ice Cluster and 3 other kinds.

The chain crosses two disciplines — Alchemist to Lv 70 and Carpenter to Lv 70 — so no single class can finish it unaided.

6 of the 9 raw materials come out of the ground, and 3 of them are time-gated: Torreya Log (6:00, 18:00), Thavnairian Mistletoe (17:00) and 1 other. The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Chirurgeon's Essentials is itself consumed by 1 further recipe, all of them Carpenter recipes.