Tidal Wavesoul Fount ★★★

Taken all the way down to base materials, one Tidal Wavesoul Fount is 2 crafting steps deep and needs 2 intermediates — Darksteel Nugget ×10 and Gold Ingot ×1 — which resolve to 6 distinct raw materials totalling 40 units, plus 45 crystals.

That bill outweighs 11,825 of the 13,602 recipes tracked here and 1,447 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 12 of those crystals go into the final step; the other 33 are burned by the intermediates, so the real crystal cost is 30 Fire Crystal, 12 Water Crystal, 2 Wind Cluster and 1 other kind.

The chain crosses two disciplines — Blacksmith to Lv 50 and Goldsmith to Lv 50 — so no single class can finish it unaided.

4 of the 6 raw materials come out of the ground, and 3 of them are time-gated: Darksteel Ore (1:00), Gold Ore (9:00) and 1 other. The widest gap between consecutive opening times is 16 Eorzean hours, about 47 real-world minutes.

Of the intermediates, Gold Ingot has the widest use: 184 recipes call for it, spanning seven of the eight crafting classes.