Obelisk ★★

Taken all the way down to base materials, one Obelisk is 4 crafting steps deep and needs 4 intermediates — Obelisk Head ×1, Spruce Lumber ×1, Darksteel Ingot ×1 and 1 other — which resolve to 3 distinct raw materials totalling 33 units, plus 29 crystals.

That bill outweighs 10,907 of the 13,602 recipes tracked here and 1,266 of the 1,932 Blacksmith ones, and 1 recipe nests deeper.

Only 2 of those crystals go into the final step; the other 27 are burned by the intermediates, so the real crystal cost is 21 Fire Crystal, 3 Fire Cluster, 3 Wind Crystal and 1 other kind.

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

2 of the 3 raw materials come out of the ground, and 2 of them are time-gated: Darksteel Ore (1:00) and Spruce Log (9:00). The widest gap between consecutive opening times is 16 Eorzean hours, about 47 real-world minutes.

Of the intermediates, Darksteel Nugget has the widest use: 121 recipes call for it, spanning seven of the eight crafting classes.