Ruby Weapon Bust ★★

Taken all the way down to base materials, one Ruby Weapon Bust is 2 crafting steps deep and needs 3 intermediates — Dwarven Mythril Ingot ×2, Sandalwood Lumber ×1 and Tungsten Steel Ingot ×1 — which resolve to 7 distinct raw materials totalling 23 units, plus 26 crystals.

That bill outweighs 8,647 of the 13,602 recipes tracked here and 847 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 22 are burned by the intermediates, so the real crystal cost is 14 Fire Crystal, 4 Earth Cluster, 4 Ice Cluster and 2 other kinds.

The chain crosses three disciplines — Armorer to Lv 80, Blacksmith to Lv 80 and Carpenter to Lv 80 — so no single class can finish it unaided.

4 of the 7 raw materials come out of the ground, and 2 of them are time-gated: Sandalwood Log (2:00, 14:00) and Tungsten Ore (10:00, 22:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Dwarven Mythril Ingot has the widest use: 168 recipes call for it, spanning seven of the eight crafting classes.