Highland Fence

Taken all the way down to base materials, one Highland Fence is 3 crafting steps deep and needs 2 intermediates — Mythrite Ingot ×15 and Mythrite Nugget ×15 — which resolve to 5 distinct raw materials totalling 190 units, plus 101 crystals.

That bill outweighs 13,556 of the 13,602 recipes tracked here and 2,198 of the 2,216 Goldsmith ones, and 337 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 90 are burned by the intermediates, so the real crystal cost is 95 Fire Crystal and 6 Wind Crystal.

The chain crosses two disciplines — Goldsmith to Lv 60 and Blacksmith to Lv 52 — so no single class can finish it unaided.

All 5 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, Mythrite Nugget has the widest use: 102 recipes call for it, spanning seven of the eight crafting classes.