Eikon Leather Boots of Casting ★★★

Taken all the way down to base materials, one Eikon Leather Boots of Casting is 3 crafting steps deep and needs 7 intermediates — Eikon Leather ×2, Grade 1 Intelligence Dissolvent ×2, Eikon Cloth ×1 and 4 others — which resolve to 14 distinct raw materials totalling 42 units, plus 42 crystals.

That bill outweighs 12,044 of the 13,602 recipes tracked here and 1,777 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 37 are burned by the intermediates, so the real crystal cost is 9 Earth Cluster, 9 Fire Crystal, 8 Wind Cluster and 4 other kinds.

The chain crosses four disciplines — Leatherworker to Lv 60, Alchemist to Lv 60, Weaver to Lv 60 and Blacksmith to Lv 56 — so no single class can finish it unaided.

11 of the 14 raw materials come out of the ground, and 3 of them are time-gated: Frost Cotton Boll (6:00, 18:00), Wattle Bark (2:00, 14:00) and 1 other. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Rubber has the widest use: 191 recipes call for it, spanning four of the eight crafting classes.