Llymlaen's Embrace

Taken all the way down to base materials, one Llymlaen's Embrace is 2 crafting steps deep and needs 4 intermediates — Lapis Lazuli ×12, Distilled Water ×9, Bronze Ingot ×6 and 1 other — which resolve to 6 distinct raw materials totalling 64 units, plus 59 crystals.

That bill outweighs 13,221 of the 13,602 recipes tracked here and 2,135 of the 2,216 Goldsmith ones, and 4,464 recipes nest deeper.

Only 12 of those crystals go into the final step; the other 47 are burned by the intermediates, so the real crystal cost is 38 Wind Shard, 12 Fire Shard and 9 Water Shard.

The chain crosses three disciplines — Goldsmith to Lv 48, Alchemist to Lv 1 and Blacksmith to Lv 1 — 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, Electrum Ingot has the widest use: 234 recipes call for it, spanning seven of the eight crafting classes.