Holy Rainbow Cloth

Taken all the way down to base materials, one Holy Rainbow Cloth is 3 crafting steps deep and needs 4 intermediates — Holy Water ×2, Rainbow Cloth ×1, Rainbow Thread ×2 and 1 other — which resolve to 5 distinct raw materials totalling 11 units, plus 10 crystals.

That bill outweighs 5,999 of the 13,602 recipes tracked here and 737 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 7 are burned by the intermediates, so the real crystal cost is 6 Lightning Crystal, 3 Water Crystal and 1 Lightning Shard.

The chain crosses two disciplines — Weaver to Lv 52 and Alchemist to Lv 52 — so no single class can finish it unaided.

4 of the 5 raw materials come out of the ground, and one of them is time-gated: Dravanian Mistletoe (0:00, 12:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Holy Rainbow Cloth is itself consumed by 34 further recipes, spanning five of the eight crafting classes.