Doman Steel Shield

Taken all the way down to base materials, one Doman Steel Shield is 3 crafting steps deep and needs 4 intermediates — Tama-hagane Ingot ×2, Durium Nugget ×1, Pine Lumber ×1 and 1 other — which resolve to 6 distinct raw materials totalling 27 units, plus 35 crystals.

That bill outweighs 9,763 of the 13,602 recipes tracked here and 962 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 9 of those crystals go into the final step; the other 26 are burned by the intermediates, so the real crystal cost is 18 Fire Crystal, 8 Wind Crystal, 5 Ice Crystal and 1 other kind.

The chain crosses four disciplines — Armorer to Lv 67, Blacksmith to Lv 66, Carpenter to Lv 64 and Goldsmith to Lv 64 — so no single class can finish it unaided.

All 6 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Durium Nugget has the widest use: 142 recipes call for it, spanning seven of the eight crafting classes.